2001 GMC SIERRA


PRODUCT OVERVIEW:  The GMC Sierra fullsize pickup trucks
                   feature four Vortec V8 engines with
                   increased power and a 6.6L Duramax
                   Diesel, standard 4-wheel disc brakes,
                   larger cab with lower step-in height,
                   and larger cargo volume than the
                   previous model.  Sierra features a
                   modular three-piece frame for improved
                   structural integrity, and offers the
                   AutoTrac(tm) 4-wheel-drive transfer
                   case for improved traction.
                   
                   
NEW FOR 2001:      2001 Sierra 1/2-ton (1500) and 3/4-ton
                   (2500) highlights include:
                 * Four doors standard on all Extended Cab
                   models
                 * Composite pickup box [interim
                   availability] features two tier loading
                   cargo divider/tie-downs and stake
                   pockets (available for GMC-only
                   Extended Cab/Short Box 4x4 model)
                 * GVWR of 7200 lb. on 3/4-ton model is
                   discontinued
                 * Two new exterior colours (Medium Pearl
                   Green Metallic and Sunset Orange
                   Metallic)
                 * Discontinued exterior colours are
                   Meadow Green Metallic and Copper
                   Metallic
                   
                   2001 Sierra 3/4-ton (2500) Heavy-Duty and
                   1-ton (3500) pickup highlights include:
                 * Four doors standard on all Extended Cab
                   models
                 * Specific front end appearance (raised
                   hood and speci fic grille) included on
                   models with  9200-lb. GVWR and higher
                 * New "Duramax Diesel 6600" is a 6.6L
                   direct injection turbo-charged
                   intercooled V8 engine with 300 hp and
                   520 lb./ft. torque(available on models
                   with 9200-lb. GVWR and higher)
                 * New 8.1-litre V8 gasoline engine
                   ("Vortec 8100") features 340 hp and 455
                   lb./ft/torque (available on models with
                   9200-lb. GVWR and higher)
                 * 6.0-litre Generation III V8 engine
                   enhancements include aluminum heads,
                   new camshaft and exhaust system
                   (available on models with 9200-lb. GVWR
                   and higher)
                 * Allison 5-speed automatic LCT
                   transmission (available on models with
                   9200-lb. GVWR and higher)
                 * 6-speed manual transmission (available
                   on models with 9200-lb. GVWR and
                   higher)
                 * Introduction of 3/4-ton and 1-ton Crew
                   Cab bodies
                 * Increased GVWR ratings
                   
                   
MODELS:            1/2-Ton (1500)
                   Sierra Regular Cab, Short-Box, 2WD/4WD (SL, SLE)
                   Sierra Regular Cab, Long-Box, 2WD/4WD (SL, SLE)
                   Sierra Extended Cab, Short-Box, 2WD/4WD (SL, SLE, SLT)
                   Sierra Extended Cab, Long-Box, 2WD/4WD (SL, SLE, SLT)

                   3/4-Ton (2500)
                   Sierra Regular Cab, Long-Box, 2WD (SL, SLE)
                   Sierra Extended Cab, Short-Box, 4WD (SL, SLE, SLT)

                   3/4-Ton (2500) Heavy Duty
                   Sierra Regular Cab, Long-Box, 2WD/4WD (SL, SLE)
                   Sierra Extended Cab, Short-Box, 2WD/4WD (SL, SLE, SLT)
                   Sierra Extended Cab, Long-Box, 2WD/4WD (SL, SLE, SLT)
                   Sierra Crew Cab, Short-Box, 2WD/4WD (SL, SLE, SLT)
                   Sierra Crew Cab, Long-Box, 2WD/4WD (SL, SLE, SLT)

                   1-Ton (3500)
                   Sierra Regular Cab, Long-Box, 2WD/4WD (SL, SLE)
                   Sierra Extended Cab, Long-Box, 2WD/4WD (SL, SLE, SLT)
                   Sierra Crew Cab, Long-Box, 2WD/4WD (SL, SLE, SLT)
 
                   NOTE:  Some models available with the Sportside package.
                   
                   
MODEL              1500 Series = 1/2-ton
DESIGNATIONS:      2500 Series = 3/4-ton
                   3500 Series = 1-ton
                   
                   
VEHICLE CLASS:     Fullsize Pickup
                   
                   
ASSEMBLY           Oshawa, Ontario;  Fort Wayne, Indiana;
LOCATIONS:         Pontiac, Michigan; Flint, Michigan
                   
                   
CUSTOMER PROFILE:  GMC Sierra is for people who need a
                   versatile, capable fullsize pickup for
                   both business and personal use.
                   Quality, reliability and durability are
                   the most important purchase reasons,
                   along with trailering and hauling
                   ability.  Sierra owners need a vehicle
                   that is capable of handling their
                   hauling or trailering needs, and also
                   be a comfortable personal-use vehicle.
                   
                   
PRODUCT MILESTONES:
                   1936 - GMC fullsize pickup introduced
                   1937 - Exterior redesign
                   1948 - Exterior redesign
                   1955 - Exterior redesign
                   1958 - 4-wheel drive debuts on 1/2-,
                          3/4- and 1-ton pickups
                   1973 - All-new trucks introduced;
                          CrewCab and "Big Dooley" debut
                   1974 - Full-time 4-wheel drive with V8
                          engine is released
                   1977 - K30 1-ton introduced
                   1982 - 6.2L diesel engine released
                   1987 - TBI fuel injection installed on
                          V6 and V8 gasoline engines
                   1988 - All-new interior and exterior
                          design introduced; extended cab
                          ("Club Coupe") model debuts
                   1991 - Heavy-duty electronic Hydra-
                          Matic 4L80-E automatic
                          transmission introduced; Gen V
                          7.4L V8 replaces Mark IV engine
                   1992 - Suburban, Jimmy and Crew Cab
                          join C/K platform; 6.5L Turbo-
                          Diesel V8 introduced
                   1993 - 4L60-E electronic 4-speed
                          automatic transmission introduced
                   1994 - Two new 6.5L diesel engines
                          introduced
                   1995 - Redesigned instrument panel;
                          standard driver-side air bag
                          introduced on models under 8500
                          GVWR; standard 4- wheel anti-lock
                          brakes (ABS) added; engine and
                          transmission enhancements
                   1996 - New series of gasoline engines
                          include the Vortec 4300, 5000,
                          5700 and 7400 SFI V8s; rear seat
                          "Easy Access" system on Extended
                          Cab models (mid-year
                          introduction); electric shift
                          transfer case available
                   1997 - Speed-sensitive steering added;
                          passenger-side air bag standard
                          on 1/2- and 3/4-ton models (below
                          8600- lb. GVWR); enhancements to
                          automatic transmissions
                   1998 - PASSLock(tm) anti-theft system
                          added as standard equipment; four-
                          wheel-drive front axle actuator
                          (engages/disengages front axle
                          electronically
                   1999 - All-new 1/2-ton and 3/4-ton
                          trucks introduced; three all-new
                          series of Vortec V8 engines
                          (4.8L, 5.3L, 6.0L); standard 4-
                          wheel disc brakes; standard third
                          door (with wider opening) on all
                          extended cab models; standard 16"
                          tires and wheels on all models;
                          increased cab interior
                          dimensions; wider track for
                          enhanced stability; stronger
                          frame utilizing modular three-
                          section strategy; new
                          AutoTrac(tm) system for immediate
                          traction; standard engine hour
                          usage meter for fleet operators;
                          and lower step-in height
                   2000 - A fourth door becomes available
                          on the driver's side of  Sierra
                          Extended Cab models (mid-year
                          availability); and horsepower
                          increases on Vortec 4800 and 5300
                          engines
                   2001 - New "2500" 3/4 ton Heavy Duty and
                          "3500" 1-ton series with new 6.6L
                          Duramax Diesel and 8.1L gasoline
                          V8 engines (also available on new
                          3/4-ton HD models); new 5-speed
                          automatic and 6-speed manual on
                          trucks with 9200-lb. GVWR or
                          higher; and enhancements to the
                          6.0-litre Generation III V8
                          engine (on trucks with 9200-lb.
                          GVWR or higher)


EXTERIOR FEATURES                                SL\SLE\SLT
Air dam - black (1500 models only)                  S  S  S
                                                           
Bumpers - front, chrome with spectra gray cover     S  S  S
                                                           
Bumpers - rear step, painted argent                 S  -  -
                                                           
Bumpers - rear chrome with step pad                 O  S  S
                                                           
Fender flares - painted wheel opening - 1500 4WD    O  O  O
models
                                                           
Fender flares - coloured wheel opening on all       S  S  S
models except 1500 models
                                                           
Fog lights                                          O  O  S
                                                           
Glass - Solar-Ray, tinted, all windows              S  S  S
                                                           
Glass - deep tinted on all windows behind front     O  O  S
doors
                                                           
Grille - moulded plastic, painted argent (1500 and  S  -  -
2500 models)
                                                           
Grille - moulded plastic, painted argent with       O  S  S
chrome accents (1500 and 2500 models)
                                                           
Grille - moulded plastic, painted argent with       S  S  S
chrome accents (2500HD and 3500 models)
                                                           
Headlights - automatic dual halogen composite       S  S  S
                                                           
Lights - cargo and underhood                        S  S  S
                                                           
Mirror - below eye-line; foldaway, black (except    S  S  S
3500 models)
                                                           
Mirrors - power remote control with chrome accents  -  S  S
added
                                                           
Mirrors - Gooseneck, LH and RH with flat glass      S  -  -
(3500 models)
                                                           
Mirrors - heated, power remote control and chrome   -  O  S
accents added
                                                           
Mouldings - hidden roof drip, black                 S  S  S
                                                           
Mouldings - Chrome bodyside (black on SL) - except  O  S  S
Sportside and 3500 models
                                                           
Recovery hooks - two front (all models)             S  S  S
                                                           
Skid plates - off-road, included with 1500 Z71      O  O  O
suspension equipment (4WD models)
                                                           
Sportside box - (1500 models)                       O  O  O
                                                           
Tires - all tires are on 16" wheels ranging in      S  S  S
size from P235/75R16 up to LT245/75R16E; dual rear
wheels are standard on 3500 models
                                                           
Trailering Special Equipment - includes weight-     O  O  O
distributing platform trailer hitch, 8-lead wiring
harness with a 7-way sealed connector
                                                           
Wheels - steel painted silver with a centre cap; a  S  -  -
chrome centre cap is optional (1500 and 2500
series)
                                                           
Wheels - steel painted silver, dual rear (3500      S  -  -
series only)
                                                           
Wheels - steel with chrome finish and cap (1500     O  S  -
and 2500 series)
                                                           
Wheels - steel painted silver with trim rings,      O  S  S
dual rear (3500 series only)
                                                           
Wheels - aluminum painted argent (1500 series       O  -  -
only)
                                                           
Wheels - bright aluminum with a bright machined     -  O  O
finish (1500 series only)
                                                           
Wheels - polished aluminum finish (1500 and 2500    -  O  S
series)
                                                           
Wiring harness - trailer, 6-lead                    S  S  S

S - Standard Equipment.   O - Optional Equipment.


INTERIOR FEATURES                                SL\SLE\SLT
Air conditioning                                    O  S  S
                                                           
Cruise control                                      O  S  S
                                                           
Cupholders - dual                                   S  S  S
                                                           
Defogger - electric, rear window                    O  O  S
                                                           
Door trim panel - colour-keyed grained moulded      S  -  -
plastic
                                                           
Door trim panels - soft vinyl with carpet-covered   -  S  S
map pocket and cloth insert
                                                           
Floor covering - black vinyl                        S  O  O
                                                           
Floor covering - colour-keyed carpeting and         O  S  S
removable floor mats
                                                           
Gauges - analogue needle design including           S  S  S
tachometer, engine hour meter and Driver Message
Centre
                                                           
Headliner - full-length, colour-keyed cloth         S  S  S
                                                           
Mirrors - rearview, auto-dimming electrochromic     -  O  S
with compass and outside temperature readouts
                                                           
Rear floor mats - Extended and Crew Cabs            O  S  S
                                                           
Power door locks                                    O  S  S
                                                           
Power outlets - two auxiliary, 12-volt              S  S  S
                                                           
Power windows - driver-side express-down feature    -  S  S
                                                           
Steering wheel - leather-wrapped, 4-spoke sport     -  S  S
design
                                                           
Sunshades - LH and RH padded colour-keyed cloth;    S  S  S
LH with storage strap; RH with visor mirror
                                                           
Tilt-Wheel steering                                 S  S  S

S - Standard Equipment.   O - Optional Equipment.


SEATS                                             SL\SLE\SLT
Front 40/20/40 reclining split-bench seat           S  -  -
                                                           
Front, 40/20/40 split-bench with manual recliners   -  S  O
and lumbar supports and centre armrest/storage;
includes a mini overhead console; extended and
Crew Cabs also include seatback storage pockets
                                                           
High-back bucket seats with manual recliners and    -  O  O
adjustable head restraints  include driver and
front passenger 6-way power seat adjusters, driver
and front passenger manual lumbar supports and
inboard armrests; includes seatback storage
pockets, centre floor and full length overhead
consoles on Extended and Crew Cabs
                                                           
Full-feature leather high-back bucket seats with    -  -  S
driver-side 2-position memory controls and driver
and front passenger power 6-way seat adjusters;
includes driver and front passenger inboards
armrests, power lumbar supports, seatback
recliners and bolsters and seatback storage
pockets, heated driver and front passenger seats
and full length floor and overhead console
                                                           
Rear folding seat in Extended and Crew Cabs         S  S  S
                                                           
Leather front seating surfaces                      -  -  S
                                                           
Head restraints, adjustable on all outboard seats   S  S  S
                                                           
Driver and passenger 6-way power seat adjusters     -  O  S
(included with leather trim)

S - Standard Equipment.   O - Optional Equipment.


SOUND SYSTEMS                                    SL\SLE\SLT
Sierra's sound systems include an electronically          
tuned Delco AM/FM stereo with digital clock and a
2-speaker sound system in Regular Cabs, 4-speaker
in Extended and Crew Cabs:
                                                           
AM/FM stereo, includes seek/scan in Extended and    S  -  -
Crew Cab models
                                                           
AM/FM stereo with seek/scan and cassette tape       O  -  -
player
                                                           
AM/FM stereo with seek/scan, CD player, Auto Tone   -  S  O
Control, Speed Compensated Volume control and
TheftLock plus 6 speakers
                                                           
AM/FM stereo with seek/scan, cassette tape player,  -  O  -
Auto Tone Control, Speed Compensated Volume
control and TheftLock plus 6 speakers
                                                           
AM/FM stereo with seek/scan, cassette tape and CD   -  O  S
players, Auto Tone Control, Speed Compensated
Volume control and TheftLock plus 6 speakers.
(includes centre console front extension)

S - Standard Equipment.   O - Optional Equipment.


MECHANICAL                                       SL\SLE\SLT
Brakes - power, 4-wheel disc with ABS               S  S  S
                                                           
Engine - Vortec 4300 V6 (1500 models)               S  S  S
                                                           
Engine - Vortec 4800 V8 (1500 models)               O  O  O
                                                           
Engine - Vortec 5300 V8 (1500 models)               O  O  O
                                                           
Engine - Vortec 6000 V8 (2500, 2500HD and 3500      S  S  S
models)
                                                           
Engine - Vortec 8100 V8 (2500HD and 3500 models)    O  O  O
                                                           
Engine - Duramax 6600 V8 Turbo Diesel (2500HD and   O  O  O
3500 models)
                                                           
Engine block heater                                 S  S  S
                                                           
Exhaust system - aluminized stainless steel         S  S  S
                                                           
Spare Tire Carrier - lockable, winch mounted        S  S  S
                                                           
Steering - power, rack-and-pinion on 1500 Series    S  S  S
2WD models
                                                           
Steering - power recirculating ball on all other    S  S  S
models
                                                           
Suspension 2WD - Heavy-duty, includes 36mm shock    S  S  S
absorbers, provides increased damping to improve
handling or trailering (optional on 1500 and 2500
models)
                                                           
Suspension 2WD - standard suspension, includes      S  S  -
twin tube 32mm shock absorbers (1500 and 2500
models)
                                                           
Suspension 2WD - Ride control, includes 46mm shock  -  O  O
absorbers with adjustable electronic suspension
(1500 models only)
                                                           
Suspension 4WD - standard suspension, includes      S  S  S
twin tube 32mm shock absorbers (1500 and 2500
models)
                                                           
Suspension 4WD - Ride Control, includes 46mm shock  -  O  O
absorbers with adjustable electronic suspension
(1500 models only)
                                                           
Suspension 4WD - Off-Road, includes montube 46mm    -  O  O
shock absorbers, special jounce bumpers and
stabilizer bars, high-capacity air cleaner, skid
plates (shields for engine, transmission, front
differential, transfer case), special removable
air dam and Z71 decals (1500 models only)
                                                           
Suspension 4WD - Heavy-duty, includes montube 36mm  S  S  S
shock absorbers, provides increased damping to
improve handling or trailering (optional on 1500
and 2500 models)
                                                           
Transfer case - lever operated, 2-speed manual      S  S  -
(4WD models)
                                                           
Transfer case - AutoTrac with electronic push-      -  O  S
button controls (1500 and 2500 models only)
                                                           
Transfer case - Push-button electronic 2-speed      O  O  S
(except 1500 and 2500 models)
                                                           
Transfer case - floor mounted 2-speed manual (4WD   S  S  -
models)
                                                           
Transmission - 5 speed manual with overdrive        S  S  -
                                                           
Transmission - 4 speed electronically-controlled    O  O  S
automatic with overdrive
                                                           
Transmission - auxiliary oil cooler with automatic  S  S  S
transmission (except 1500 models)
                                                           
Transmission - 4-speed electronic HD automatic      O  O  O
with overdrive (standard on 2500 Crew Cabs)

S - Standard Equipment.   O - Optional Equipment.


SAFETY AND SECURITY                              SL\SLE\SLT
Air bags - Next Generation, driver and front        S  S  S
passenger-side, with on/off switch (On/Off switch
not included on Crew Cab models)
                                                           
Brake/transmission shift interlock - automatic      S  S  S
transmission only
                                                           
Headlights - Daytime Running Lights with automatic  S  S  S
light control
                                                           
Keyless entry system - remote with programmable     -  S  S
feature
                                                           
OnStar Communications system - with  one-year       -  -  S
Safety and Security Plan
                                                           
Theft-deterrent system - PASSLock II                S  S  S

S - Standard Equipment.   O - Optional Equipment.



TECHNICAL PRODUCT INFORMATION


FRAME              All-welded ladder-type with channel
                   design and boxed front section
                   
                   
BODY MATERIAL      Two-sided galvanized steel all body
                   panels (except roof)
                   
                   
SUSPENSION   front Independent - torsion bars
                   (except coil springs on 2WD 1/2-ton)
              rear Semi-elliptic; two-stage multi-leaf
                   springs
                   
                   
BRAKES             Power-assisted, front and rear disc;
                   4wheel ABS
                   
                   
STEERING           
Type               Power, integral - All 4x4,
                    1/2-ton, and all 3/4-ton models
                   Power, rack-and-pinion - All 2WD,
                    1/2-ton models
Turns              N/A
Turning Diameters  12.2 m (40.1 ft.) - 2WD, regular cab,
                                        short-box
                   12.3 m (43.6 ft.) - 2WD, regular cab,
                                        long-box
                   12.4 m (40.7 ft.) - 4x4, regular cab,
                                        short-box
                   13.6 m (44.5 ft.) - 4x4, regular cab,
                                        long-box
                   14.2 m (46.5 ft.) - 2WD, extended cab,
                                        short-box
                   15.4 m (50.4 ft.) - 2WD, extended cab,
                                        long-box
                   14.4 m (47.3 ft.) - 4x4, extended cab,
                                        short-box
                   15.6 m (51.1 ft.) - 4x4, extended cab,
                                        long-box
                   16.3 m (53.5 ft.) - crew cab
                   
                   

WHEELS             1500 (1/2-ton)       2500 (3/4-ton) /
                                        3500 (1-ton)
                   16 x 6.5" steel      16 x 6.5" steel
                   16 x 7"              16 x 7"
                   aluminum/chrome      aluminum/chrome
                   (optional)           (optional)


TIRES              P235/75R16           LT225/75R16
                   all-season  (2WD)    all-season (2WD)

                   P245/75R16           LT245/75R16E
                   all-season (4x4)     all-season (4x4 /
                                        all 3/4-ton models)

                                        LT215/85R16 D&E
                                        all season
                                        (1-ton models)
                                        
NOTE:  Tires and wheels vary according to vehicle package
and specifications.

                                        
                                        
ENGINES            Vortec 4300   Vortec 4800   Vortec 5300
                   SFI V6        SFI V8        SFI V8
Type               OHV, 4.3L V6  OHV, 4.8L V8  OHV, 5.3L V8
Block              Cast Iron     Cast Iron     Cast Iron
Cylinder Head      Cast Iron     Cast          Cast
                                 Aluminum      Aluminum
Bore x Stroke      101.60 x      96.0 x        96.0 x
                    88.39 mm      83.0 mm       92.0 mm
                   (4.00 x       (3.78 x       (3.78 x
                    3.48")        3.39")        3.22")
Displacement       4300 cc       4807 cc       5328 cc
                   (262 cu.in.)  (294 cu.in.)  (327 cu.in.)
Compression Ratio   9:2:1        9.5:1         9.5:1
Fuel               Regular       Regular       Regular
                   Unleaded      Unleaded      Unleaded
Fuel Induction     Sequential-P  Sequential-P  Sequential-P
                   ort F.I.      ort F.I.      ort F.I.
Horsepower         200 hp @      270 hp @      285 hp @
                   4600 rpm      5200 rpm      5200 rpm
Torque             260 lb.-ft.   285 lb.-ft.   325 lb.-ft.
                   @ 2800 rpm    @ 4000 rpm    @ 4000 rpm
                                                
                                                
ENGINES (cont.)    Vortec 6000   Vortec 8100   Duramax
                   SFI V8        SFI V8        Diesel V8
Type               OHV, 6.0L V8  OHV, 8.1L V8  OHV,
                                                90-degree
Block              Cast Iron     Cast Iron     Cast Iron
Cylinder Head      Cast          Cast Iron     Cast
                   Aluminum                    Aluminum
Bore x Stroke      101.6 x       107.95 x      103.0 x
                    92.0 mm       111.0 mm      99.0 mm
                   (4.00 x       (4.25 x       (4.05 x
                    3.62")        4.37")        3.90")
Displacement       5967 cc       8129 cc       6599 cc
                   (364 cu.in.)  (496 cu.in.)  (403 cu.in.)
Compression Ratio  9.4:1         9.1:1         17.5:1
Fuel               Regular       Regular       Diesel
                   Unleaded      Unleaded
Fuel Induction     Sequential-P  Sequential-P  High-pressur
                   ort F.I.      ort F.I.      ed common
                                                rail
Horsepower         300 hp @      340 hp @      300 hp @
                   4400 rpm      4200 rpm      3100 rpm
Torque             360 lb.-ft.   455 lb.-ft.   520 lb.-ft.
                   @ 4000 rpm    @ 3200 rpm    @ 1800 rpm
                                                
                                                
LAYOUT             Front engine / 2WD (rear drive) and 4x4
                   
                   
TRANSMISSIONS      4-Speed       4-Speed       5-Speed
                   Electronic    Heavy-Duty    Manual
                   Automatic     Electronic    w/Overdrive
                   w/Overdrive   Automatic     (under 8600
                   (under 8600   w/Overdrive   GVWR)
                   GVWR)         (over 8600
                                 GVWR)
Gear Ratios    1st 3.06          2.48          4.02
               2nd 1.63          1.48          2.32
               3rd 1.00          1.00          1.40
               4th 0.70          0.75          1.00
               5th -----         -----         0.73
           Reverse 2.29          2.08          3.55
Final Drive Ratios 3.42          3.73          3.42
                                                
                                                
TRANSMISSIONS      5-Speed       5-Speed       6-Speed ZF
(cont.)            Manual        Electronic    Manual
                   w/Overdrive   Automatic     (9200 and
                   (over 8600    w/Overdrive   over GVWR)
                   GVWR)         (9200 and
                                 over GVWR)
Gear Ratios    1st 5.61          3.10          5.79
               2nd 3.04          1.81          3.30
               3rd 1.67          1.41          2.10
               4th 1.00          1.00          1.31
               5th 0.75          0.71          1.00
               6th -----         -----         0.72
           Reverse 5.04          4.64          5.23
Final Drive Ratios 3.73          N/A           N/A
                                                
                                                

EXTERIOR           Regular   Regular    Extended  Extended
DIMENSIONS         Cab       Cab        Cab       Cab
                   Short-    Long-Box   Short-    Long Box
                   Box                  Box
Wheelbase          3023 mm   3782 mm    3645 mm   4001 mm
                   (119.0")  (133.0")   (143.5")  (157.5")
Length             5164 mm   5644 mm    5781 mm   6266 mm
                   (203.3")  (222.2")   (227.6")  (246.7")
Width              1990 mm   1994 mm    1994 mm   1994 mm
                   ( 78.5")  ( 78.5")   ( 78.5")  ( 78.5")
Height             1808 mm   1803 mm    1808 mm   1798 mm
 (1/2-ton, 2WD)    ( 71.2")  ( 71.0")   ( 71.2")  ( 70.8")
Height             1875 mm   1872 mm    1877 mm   1872 mm
 (1/2-ton, 4x4)    ( 73.8")  ( 73.7")   ( 73.9")  ( 73.7")
Height             N/A       1872 mm    1880 mm   1882 mm
 (3/4-ton, 2WD)              ( 73.7")   ( 74.0")  ( 74.1")
Height             N/A       1885 mm    1890 mm   1892 mm
 (3/4-ton, 4x4)              ( 74.2")   ( 74.4")  ( 74.5")
                                                   
                                                   
EXTERIOR           Crew Cab   Crew Cab             
DIMENSIONS         Short-Box  Long-Box
Wheelbase          3886 mm    4242 mm              
                   (153.0")   (167.0")
Length             6027 mm    6507 mm              
                   (237.3")   (256.2")
Width              2024 mm    1994 mm              
                   ( 79.7")   ( 78.5")
Height             1956 mm    1859 mm              
 (3/4-ton, 2WD)    ( 77.0")   ( 73.2")
Height             1966 mm    1913 mm              
 (3/4-ton, 4x4)    ( 77.4")   ( 75.3")
Height             N/A        1859 mm
 (1-ton, 2WD)                 ( 73.2")
Height             N/A        1913 mm
 (1-ton, 4x4)                 ( 75.3")

Note:  All heights dependent upon tire style and without marker lamps.


INTERIOR DIMENSIONS
                    Regular Cab   Extended Cab  Crew Cab
Head Room          1041 mm       1041/ 975 mm  1041/ 991 mm
       front/rear  (41.0")       (41.0/38.4")  (41.0/39.0")
Leg Room           1049 mm       1049/ 856 mm  1049/ 980 mm
       front/rear  (41.3")       (41.3/33.7")  (41.3/38.6")
Shoulder Room      1656 mm       1656/1684 mm  1656/1654 mm
       front/rear  (65.2")       (65.2/66.3")  (65.2/65.1")
Hip Room           1559 mm       1559/1562 mm  1559/1598 mm
       front/rear  (61.4")       (61.4/61.5")  (61.4/62.9")
Rear Seatback      N/A           18 degrees    23 degrees
            Angle
                                                
                                                
WEIGHTS/CAPACITIES
Passenger Seating  3/2   - Regular Cab
                   6/5/3 - Extended Cab / Crew Cab
Fuel Capacity       95 L (20.8 gal.) - Short-box models
                   129 L (28.3 gal.) - Long-box models
Cargo Volumes      1611 L (56.9 cu.ft.) - Short-box
                   2002 L (70.7 cu.ft.) - Long-box
                   1232 L (43.5 cu.ft.) - Short-box
                                           (Sportside)
                   
                   Sierra 1500          Sierra 2500
                   (1/2-ton)            (3/4-ton)
GVWR (min/max)      2540 / 2903 kg.      3266 / 3901 kg.
                   (6100 / 6400 lb.)    (7200 / 8600 lb.)

Payload (min/max)    767 / 1007 kg.      1133 / 1822 kg.
                   (1692 / 2220 lb.)    (2498 / 4018 lb.)
                   
                   Sierra 2500          Sierra 3500
                   (3/4-ton)            (1-ton)
                   - Heavy-Duty
GVWR               4175 kg. (9200 lb.)  5170 kg.
                                        (11,400 lb.)

Payload (maximum)  1783 kg. (3931 lb.)  2579 kg.
                                        (5,687 lb.)

                                        5443 kg.
                                        (12,000 lb.)
                                        -on Chassis Cab
                  
______________________________________________
The above is the latest information at the time of posting.
GM of Canada Limited reserves the right to make changes at any time.