CHEVROLET KODIAK/GMC TOPKICK MEDIUM DUTY TRUCKS

For Release: Aug. 1, 2004

New for 2005

  • Four-wheel-drive system available on C4500 and C5500 models
  • Allison transmissions recalibrated, backed by longer warranty
  • 120,000-psi heat-treated frame included on C6500-C8500 models
  • Two-person seat option available on all models

CHEVROLET KODIAK, GMC TOPKICK DELIVER DURABILITY, PERFORMANCE – AND FOR 2005, FOUR-WHEEL-DRIVE CAPABILITY

Chevrolet Kodiak and GMC TopKick continue to deliver more of what customers demand from their medium-duty trucks. For the 2005 model year, “more” refers to off-road capability, thanks to factory-engineered four-wheel drive on C4500 and C5500 models. Four-wheel-drive Kodiaks and TopKicks begin production in July 2004.

"The GM-installed four-wheel-drive option is something commercial customers and dealers have been asking for," said Elliott Benson, product manager for the Kodiak and TopKick C4500 and C5500 models. "This response should exceed customer expectations across a wide range of industries, including forestry, snow plowing, landscaping, agriculture, tree trimming, utility work, and more. These new models will also meet the needs of retail buyers who demand four-wheel drive."

As Benson explained, many of these commercial users operate their vehicles off-road, where traction is critical. Being stuck at a work site – or not being able to reach the site – can carry tremendous costs for owners.

"Not only are these 4x4s able to get to the job, they bring with them enhanced agility. These trucks can make surprisingly tight turns in confined areas, providing a tremendous advantage, whether you're plowing a parking lot or maneuvering in a tight construction site," Benson said.

Versatility is the name of the game for GM’s medium duty customers. Four-wheel-drive Kodiak and TopKick models, for example, are available in a variety of wheelbases – ranging from 152 inches (386 cm) to 235 inches (597 cm) – in both Regular Cab and Crew Cab configurations. These go-anywhere medium duty trucks are powered by either the standard Vortec 8100MD V-8 gasoline engine or the available Duramax 6600 V-8 Turbo Diesel. Both powertrains are mated to the proven Allison 1000 Series five-speed automatic transmission.

Enhancing these vehicles’ off-road capability is an electronically controlled New Venture Gear Model NV273 two-speed transfer case, and aninstrument panel-mounted rotary selector switch for 4L, 4H and 2H drive settings. Four-wheel-drive Kodiak and TopKick models also feature manually activated front locking hubs for additional traction capability and a heavy-duty off-road skid plate to protect the transfer case.

To enable engine power to be optimized for various operating conditions, all C4500/C5500 Series Kodiak and TopKick models feature electronic throttle control. It permits throttle progression to be optimized, giving the medium duty 4x4s outstanding throttle control for slow-speed parking lot maneuvers, as well as an immediate response when power is demanded under the most rugged off-road conditions.

Four-wheel-drive C4500/C5500 Series Kodiaks and TopKicks measure up well against the competition in a number of areas. Superior off-road performance, outstanding maneuverability, stronger frames (80,000 psi/610,400 RBM), larger brakes (15-inch discs, front and rear) and more combine to create an outstanding product available only from GM dealers. Even the convenient instrument panel-mounted rotary switch used to engage the transfer case demonstrates the commitment to end-users; the competitor uses a floor-mounted mechanical shift lever.

"In addition to all of the product superlatives, Kodiak and TopKick 4x4 models give our customers the peace of mind that comes from knowing that the four-wheel-drive design and components are fully integrated and validated by GM for the C4500/C5500 and are covered by a comprehensive GM warranty," Benson said.

Enhanced calibration and warranty coverage for Allison transmissions

To better meet the needs of vocational applications, many of the Allison transmissions have been recalibrated, and they’re now backed by longer warranties for 2005. For example, the Allison 1000 PTS and 2200 PTS, used for pupil transportation and shuttle series on C4500/C5500 models, feature a unique calibration for lock-up in third gear – versus lockup in second gear for the previous model. Both transmissions now feature a three-year, 100,000-mile limited warranty.

The Allison 1000 EVS – used with Fire Rescue and Ambulance packages on C4500/C5500 models – features a five-year, unlimited mileage limited warranty. The Allison 1000 MH and 2200 MH – featured on C4500/C5500 motor home series – meanwhile, are backed by a two-year, 100-percent parts and labor coverage warranty, plus a three-year extended transmission coverage. Mileage coverage is extended to 200,000 miles.

Allison vocational transmissions also are added on C6500 and C7500 models for 2005. A 2500 HS Allison transmission replaces the 2000 Series transmission in all applications. Thanks to the 2500 HS, the Gross Vehicle Weight Rating (GVWR) is increased to 33,000 pounds for 2005 versus 30,000 pounds for 2004. The Allison 3000 RDS close-ratio six-speed automatic transmission becomes the base transmission on C8500 models and is available on C6500 and C75000 models. A number of other transmission choices are also available. (Please see the accompanying specification pages for a complete listing of engine and transmission choices.)

Maneuverability, visibility

Class-leading attributes of Kodiak and TopKick begin with their maneuverability. Their wider front track permits a 53-degree wheel cut, resulting in a turning diameter as tight as 47 feet (14.3 m). In addition, their sloped-hood design and large windshield provide improved visibility for safety and a better view of the job site.

Kodiak and TopKick also feature state-of-the-art exterior mirrors that are attached to the body-side cowl, reducing vibration during operation. These mirrors can fold forward and backward, making them less prone to damage.

The net result of the trucks’ design is the ability to see objects on the ground as close as 13.8 feet (4.2 m) in front of the truck (as measured from the front bumper), giving a 13-foot (4 m) sight advantage over comparable competitive models (with their average of 26.8 feet (8.2 m)). That’s even better than the forward visibility measurements of many compact pickup trucks.

Reliable, durable and efficient

Already boasting the least amount of unscheduled downtime in their class, according to J. D. Power and Associates, these medium-duty trucks have been designed to provide even more reliability and durability. They are also easier to service, should repairs become necessary. A unique service design, called "Priority Access System," integrates components into major modules within the engine compartment. This allows groups of parts to be removed by a technician either independently or in sequence, depending on how much accessibility is required.

Other upgrades have been engineered to increase reliability and lower the overall cost of ownership. For instance, all C4500 and C5500 Series models are designed off a medium-duty chassis featuring a more robust and durable foundation frame that is constructed with higher 50,000- and 80,000-psi-strength steel.

For 2005, C6500-C8500 models use a 120,000-psi heat-treated frame for an even stronger frame rating. Compared to C4500 and C5500 models, C6500-C8500 feature larger frames and offer a wider selection of wheelbases and single and tandem rear-axle configurations to accommodate larger bodies. Single-axle models can easily accommodate bodies up to 30 feet (9.1 m) without requiring any extra-cost frame extensions.

Braking-system design improvements include longer design life and a simpler disc-brake-pad removal and replacement process. The electrical system has been redesigned to take advantage of new multiplexing technology, meaning fewer wires and connections doing more work with less complexity. And a whole host of new service-design features have been engineered into the Duramax engines, resulting in higher durability and lower operating costs.

Plenty of power and torque

In medium-duty trucks, power and torque are the names of the game. The Chevrolet Kodiak and GMC TopKick lineups deliver with powertrains that range from the Vortec 8100 8.1L gasoline V-8 engine that is standard on the C4500-C7500 models, to the Duramax 7800 7.8L inline six-cylinder diesel of the Kodiak and TopKick C8500 models. For those seeking more horsepower and torque, C4500 and C5500 models offer the Duramax 6600 V-8 diesel engine, while the C6500-C8500 offer the Caterpillar 3126E I-6 diesel engine. (For specific powertrain applications and performance ratings, please see the accompanying specification pages.)

World-class braking

Class-leading power is supplemented by world-class braking. C4500-C7500 models feature new hydraulic four-wheel anti-lock disc brake systems with standard four-channel ABS, electronic brake distribution and available traction control.

The C4500 and C5500 trucks use two systems to optimize performance for particular GVW requirements, with both offering reduced stopping distances, lower pedal effort and quieter, longer-life operation.

C6500-C8500 models, meanwhile, feature low-drag, opposed four-piston, fixed-caliper brake design with diameters sized to particular GVW load requirements. Premium, high-capacity 70-mm, four-piston brake systems are now standard on both the front and rear.

All Crew Cab models feature the HydroMax brake booster for brake actuation. Both HydroMax and Hydroboost (used on some conventional cab vehicles) operate on the same principle, with the power steering pump supplying the booster power. A tandem (split) master cylinder provides the independent front and rear circuits for the hydraulic brake system. Sensors warn the driver of "low fluid" or secondary brake failure. 

Modifications made easy

The key to low-cost modifications rests with new superior-strength frames. All models share a stamped, straight-section, C-channel frame, providing maximum strength and a clean back-of-cab design for easy, low-cost body and equipment installations. By using three variations of frame strength, Kodiak and TopKick Class 4-5 models optimize weight- and load-carrying capability for their specific applications, without requiring any reinforcement.

The C4500 and C5500 frames are so strong that even the lowest-rated frame has a higher strength rating than the 36,000-psi rating of comparable competitive frames. New cross members are web-mounted to the frame, providing additional torsional stiffness and rigidity.

The stronger, longer frames allow wheelbases ranging up to 235 inches (597 cm), with plenty of rear overhang for upfitter applications. Fuel tanks, available in multiple capacities, are mounted cleanly between the frame rails. They include 100-gallon (379L) capacity provided by dual tanks on Class 6-8 models.

Smoother, quieter ride

All Kodiak and TopKick models improve on the best-in-class ride and handling features of the previous-generation C-Series. All models feature a new three-point cab mounting system that – on the C6500-C8500 models – incorporates a specially designed "bridge support" at the rear for extra isolation.

New seat option

For greater interior versatility, along with increased roominess for a center passenger, all Kodiak and TopKick models offer a two-person seat option for 2005. The seat is available in gray vinyl only and features fixed seatbacks. To make room for the seat, the center console and cupholder have been removed and the cigarette lighter option is no longer available. The two-person seat option is available on all Regular Cab models with automatic transmissions and air brake manual transmissions.

Expanded model range

The Kodiak and TopKick C4500 and C5500 Series are available in Crew Cab, Regular and Commercial Cutaway Chassis Cabs, as well as vocational packages to cover school bus, fire and rescue, ambulance, shuttle bus, wrecker and snowplow requirements.

For larger tasks, the Kodiak and TopKick C6500, C7500 and C8500 Series (Class 6, 7, 8) trucks offer Regular and Commercial Cutaway Chassis Cab offerings, along with the Crew Cab and T-Series. This model range also includes LoPro (low profile) and Tandem axle variants.

The Chevrolet Kodiak and GMC TopKick line of medium-duty trucks are produced at the Flint Assembly Plant in Flint, Mich. The plant features state-of-the-art machinery and best practices, resulting in consistently high quality and quick customer delivery.

Contact:
FCO Communications
Rebecca Harris
Phone: 313-667-2634
Fax: 313-667-8167
E-mail: rebecca.l.harris@gm.com

GM of Canada Communications
Richard James
Phone: 905-644-1804
Fax: 905-644-3873
E-mail: richard.james@gm.com

GM de Mexico Communications
Juan Bernardo Urrutia
Phone: 011-525-6250-3046
E-mail: juanbernardo.urrutia@gm.com


SPECIFICATIONS C4500/C5500

(See GM of Canada section for Canadian Chevy product differences and GMC product differences)   

Overview

Models:

2005 Chevrolet Kodiak and GMC TopKick C4500 and C5500

Body style / driveline:

1-3 passenger Regular Cab; 1-6 passenger Crew Cab, motorhome cutaway cab chassis, commercial cutaway chassis cab and school bus chassis; front-engine, rear-wheel drive, four-wheel drive

EPA vehicle class:

Class 4 (C4500) and Class 5 (C5500) trucks available in

16,000-, 17,500-, 18,000- and 19,500-pound GVW ratings

Manufacturing location:

Flint, Michigan

Key competitor:

Ford SuperDuty

 

Engines

Vortec 8100 (L18)

Duramax 6600 (LLY)

Application:

C4500 or C5500

C4500 or C5500

Type:

OHV gas V-8

OHV diesel V-8

Displacement (cu in / cc):

496 / 8128

403 / 6599

Bore & stroke (in / mm):

4.25 x 4.37 / 107.95 x 111.0

4.06 x 3.90 / 103 x 99

Block material:

cast iron

cast iron

Cylinder head material:

cast iron

aluminum

Valve train:

OHV, 2 valves per cylinder

OHV, 4 valves per cylinder

Fuel delivery:

sequential fuel injection (coil-near-plug)

turbocharged, intercooled direct injection via high-pressure common rail

Compression ratio:

9.1:1

17.5:1

Horsepower (hp / kw @ rpm):

LQR: 225 / 168 @ 3600
LRW: 325 / 242 @ 4000

LRY: 210 / 157 @ 3000

LRX: 300 / 224 @ 3000

Torque (lb-ft / Nm @ rpm):

LQR: 350 / 475 @ 1200
LRW: 450 / 603 @ 2800

520 / 705 @ 1600

Recommended fuel:

unleaded 87 octane (minimum)

No. 2 diesel

Maximum engine
speed (rpm):

5000

3250

 

Transmissions

ZF S6-650 (M50)

Allison 1000 (M74)

Type:

6-speed manual

5-speed automatic

First:

5.79

3.10

Second:

3.31

1.81

Third:

2.10

1.41

Fourth:

1.31

1.00

Fifth:

1.00

0.71

Sixth:

0.76

Reverse:

5.23

4.49

PTO (optional):

6-bolt SAE

Final drive (axle) ratio:

5.13

4.88 / 5.13
 

Chassis/Suspension

Front:

solid beam axle (7,000-lb w/C4500; 7,000-lb w/C5500), single-stage parabolic tapered-leaf springs with 34-mm square-tube stabilizer bar, 35-mm shock absorbers

Rear:

full floating axle (13,500-lb w/C4500, 13,500-lb w/C5500), multileaf springs with 35-mm shock absorbers, 44.5-mm stabilizer bar

Steering type:

ZF S-2 recirculating ball, integral power

Steering ratio:

variable, 16.1:1 to 19.6:1

Turning circle,
curb-to-curb (ft / m):

Regular Cab: 48.0 / 14.6
Crew Cab: 59.5 / 18.1

Brakes

Type:

hydraulic, 4-channel ABS, EBD

Disc diameter (in / mm):

front: 15 / 381
rear: 15 / 381

Wheels/Tires

Base wheel:

hub-piloted steel, 8-hole, 19.5 inch x 6.75 inch

Tire:

245/70R19.5G, with highway traction, on/off road tread design
 

Dimensions

 

Exterior

Wheelbase (in / mm):

Regular Cab: 128 / 3251; 152 / 3861; 176 / 4470; 188 / 4775; 194 / 4928
Crew Cab: 194 / 4928; 217 / 5512; 229 / 5817; 235 / 5969

Overall length (in / mm):

Regular Cab: 205.5 / 5220; 250.6 / 6364; 282.7 / 7180; 309.1 / 7850; 315.0 / 8000
Crew Cab: 267.7 / 6805; 292.7 / 7441, 337.9 / 8590,

350 / 8897 and 356 / 9050 (C5 only)

Overall width (in / mm):

95.8 / 2433 (114.9 / 2918 with mirrors)

Overall height (in / mm):

Regular Cab (RWD): 90.6 / 2301
Crew Cab (RWD): 91.2 / 2316

Regular Cab (4WD): 94.6 / 2402
Crew Cab (4WD): 95.2 / 2418

Step-in height (in / mm):

RWD: 19.0 / 483

4WD: 23.0 / 584

Frame width (in / mm):

33.5 / 851 (C4500: 80,000 psi; C5500: 80,000 psi)

Approach / departure angle (deg):

Regular Cab (RWD): 28.1 / 23
Crew Cab (RWD): 19.9

Regular Cab (4WD): 35.5 / 18.9
Crew Cab (4WD): 35.5 / 18.9

Track (in / mm):

front: 79.6 / 2022
rear: 73.1 / 1857

Minimum ground clearance
(in / mm):

Regular Cab (RWD): 8.4 / 213
Crew Cab (RWD): 8.3 / 210

Regular Cab (4WD): 9.4 / 239
Crew Cab (4WD): 9.3 / 236

GVWR (lb / kg):

C4500 & C5500 (RWD): 16000 / 5972

C4500 (4WD): 17500 / 6531

C5500: (4WD) 19500 / 7278

GCWR (lb / kg):

C4500 (RWD): 24000 / 8958
C5500 (4WD): 26000 / 9704

C4500 & C5500 (4WD): 26000 / 9704
 

Interior

Head room (in / mm):

4.6 / 117 (minimum head clearance)

Leg room (in / mm):

front: 39.9 / 1014
rear: 39.4 / 1001

Shoulder room (in / mm):

front: 68.8 / 1748
rear: 67.4 / 1712

Mirrors, surface area (sq in / sq cm):

120 / 774 (outside-mounted mirrors only)

 

Capacities

Fuel tank (gal / L):

32 / 121 (single, behind rear axle)

40 / 151 (single, behind rear axle)
60 / 227 (single, behind rear axle)
 

Overall Wheelbase and Frame

Dimensions

Wheelbase

Cab-to-Axle (CA)

Cab-to-End of Frame (CE)

Conventional Cab Chassis (in / mm):

128 / 3251
152 / 3861
176 / 4470
188 / 4775
194 / 4928
206 / 5232

60 / 1524
84 / 2134
108 / 2743
120 / 3048
126 / 3200
138 / 3505

95.9 / 2436
139.3 / 3553
177.6 / 4511
203 / 5156
209 / 5309
221 / 5613

Crew Cab (in / mm):

169 / 4293
194 / 4928
217 / 5512
229 / 5817
235 / 5969*

60 / 1524
84 / 2134
108 / 2743
120 / 3048
126 / 3200

121.3 / 3081
146.3 / 3716
192 / 4877
204 / 5182
210 / 5334

Motor Home Cutaway (in / mm):

165.5 / 4204
183.5 / 4661
195.5 / 4966
213.5 / 5423

100 / 2540
118 / 2997
130 / 3302
148 / 3759

182.9 / 4646
217.4 / 5522
245.9 / 6246
264 / 6706

Commercial Cutaway (in / mm):

165.5 / 4204
183.5 / 4661
195.5 / 4966

100 / 2540
118 / 2997
130 / 3302

169.7 / 4310
201 / 5105
213 / 5410

*C5500 model only

SPECIFICATIONS C6500/C7500/C8500

(See GM of Canada section for Canadian Chevy product differences and GMC product differences)     

Overview

Models:

2005 Chevrolet Kodiak and GMC TopKick C6500/C7500/C8500

Body style / driveline:

1-3 passenger regular cab; 1-6 passenger crew cab, commercial cutaway chassis cab; front-engine, rear-wheel drive

EPA vehicle class:

Class 6 (C6500), Class 7 (C7500) and Class 8 (C8500) medium-duty trucks available in 19,501-26,000-pound (Class 6), 26,001-33,000-pound (Class 7) and 33,001-61,000-pound (Class 8) GVW ratings

Manufacturing location:

Flint, Michigan

Key competitors:

International Truck, Freightliner, Ford

 

Engines

Vortec 8100 (L18)

Duramax 7800 (LG4)

Caterpillar 3126E

Type:

8.1L gas V-8

7.8L diesel I-6

7.2L diesel I-6

Displacement (cu in / cc):

496 / 8128

475 / 7785

442 / 7244

Bore & stroke (in / mm):

4.25 x 4.37 /
107.95 x 111

4.53 x 4.92 /
115 x 125

4.33 x 5.0 /
110 x 127

Block material:

cast iron

gray iron

gray iron

Cylinder head material:

cast iron

cast iron

gray iron

Valvetrain:

OHV, 2 valves per cylinder

4 valves per cylinder

3 valves per cylinder

Fuel delivery:

sequential fuel LQR: injection (coil-near-plug)

turbocharged, inter-cooled direct injection via high-pressure common rail

turbocharged, air-to-air after-cooled direct, HEUI unit injector

Compression ratio:

9.1:1

16.0:1

16.0:1

Horsepower (hp / kw @ rpm):

225 / 168 (LQR) or
295 / 242 (LRZ) @ 3600

200 / 149 (LQB)
215 / 160 (LPU)

215/160 (LPT)
230 / 172 (LQC)
250 / 187 (LPC)
250 / 187 (LQS)
275 / 205 (LQH)
275 / 205 (LPK)

300 / 224 (LQF)

All hp numbers @ 2200 rpm

175 / 131 (LSV)
210 / 157 (LSX) or
210 / 157 (LRQ) @ 2500;
207 / 154 (LQA) @ 2300;
230 / 172 (LQG) @ 2200;

230 / 172 (LSZ)

250 / 187 (LQV)
250 / 187 (LRR)
275 / 205 (LQW)
275 / 205 (LRS)
300 / 224 (LQX) or
300 / 224 (LRS) @ 2400

Torque (lb-ft / Nm @ rpm):

350 / 475 (LQR) or
440 / 597 (LRZ) @ 1200 (LQR) or 3200 (LRZ)

520 / 706 (LQB)
520 / 706 (LPU)

660 / 896 (LPT)
660 / 896 (LQC)
660 / 896 (LPC)
800 / 1086 (LQS)
800 / 1086 (LQH)
860 / 1167 (LPK)

860 / 1167 (LQF)

all torque numbers @ 1450 rpm

420 / 570 (LSV)
520/ 706 (LQA)
520 / 706 (LSX

520 / 706 (LQG)
605 / 821 (LRQ)
660 / 896 (LSZ)
660 / 896 (LQV)
800 / 1086 (LRR)
800 / 1086 (LQW)
860 / 1167 (LRS)
800 / 1086 (LQX)
860 / 1167 (LRS) @ 1440

Recommended fuel:

unleaded 87 octane

No. 2 diesel

No. 2 diesel

Maximum engine speed (rpm):

4200 (w/hydraulic brakes)
4000 (w/air brakes)

2500

2500
 

Transmissions

MD:

3000 Series automatics

Allison:

2400 (MTW) / 3000 (RDS) / 3500 (RDS) / 3500 (EVS)
6-speed (MWU) or 5-speed (MWT) automatic: close-ratio

6-speed (MWZ) or 5-speed (MWY) automatic: wide-ratio

6-speed (MB5) or 5-speed (MF8) automatic: close ratio

6-speed (MB6) or 5-speed (MY8) automatic: wide-ratio

Eaton Fuller:

5-, 6-, 9- and 10-speed manuals:FS4205A (MSG) standard-step 5-speed
FS4205B (MSC) short-step (4th to 5th) 5-speed
FS5205A (MPU) high-torque version of MSG
FS5205B (MNC) high-torque version of MSC
FS6305A (MKO) high-capacity version of MPU
FS6305B (MLO) high-capacity version of MNC
FS5406A (MM7) Synchro-6 6-speed or (MM8) high-torque capacity version of MM7
7FSO-8406A (M69) Synchro-6 6-speed, high-torque capacity version of MM8
RT-6609A (MUT) 9-speed (9 forward, 2 reverse)
RT-8709B (MS9) high-torque version of MUT
RT-8908LL (MT3) 10-speed (8 forward plus 2 lows, 3 reverse)

Spicer / TTC:

7-speed manuals: ES56-7B (MK8)
7-speed manual: ESO66-7B (MK9)
high-torque version of MK8
 

Chassis/Suspension

Front:

single-stage parabolic tapered-leaf springs (7,000-, 8,000-, 9,000-, 10,000-, 12,000- and 14,000-pound capacities), or single-stage, multileaf springs (9,000-, 12,000-, 14,600- and 18,000-pound) with twin-tube 35-mm shock absorbers and available 34-mm, 38-mm or 42-mm stabilizer bar

Rear:

Eaton DS404 axle on parabolic, 3 tapered-leaf springs (15,000-, 19,000-, 21,000- and 23,000-pound capacities), twin tube, 35-mm or 45-mm (depending on spring rate) shock absorbers and 44-mm (15,000-pound) or 48-mm (all other capacities) stabilizer bar. Multileaf available in 15,000-, 19,000-, 21,000-, 23,000- and 27,000-pound capacities (shock absorbers optional). Hendrickson "Air-Ride" suspension available in 19,000- and 23,000-pound capacities; "Walking Beam" available in 34,000- and 46,000-pound capacities with tandem rear axles.

Steering type:

ZF S-2 recirculating ball, integral power

Steering ratios (:1):

variable: 16.1 to 19.6 for 8,000-pound front axle
18.1 to 21.4 for 10,000-, 12,000- and 14,600-pound
21.4 to 24.5 for 16,000-pound

Turning circle,
curb-to-curb (ft / m):

39.0 / 11.9 (Class 6 Regular Cab)

50.8 / 15.5 (Crew Cab models w/ 194-inch wheelbase)
60.9 / 18.3 (Lo Pro version)
 

Brakes

Type:

hydraulic, four-channel ABS, EBD (optional brake-control traction control system) (Air drum brakes available for Class 7 Crew Cab and Class 8 trucks; standard on Class 8 Crew Cab)

Disc diameter (in / mm):

front: 15.4 / 391.2; rear: 15.4 / 391.2
 

Wheels/Tires

Wheel size and type (base):

19.5-inch x 6.75-inch steel (Lo Pro model)
22.5-inch x 7.5-inch steel (all other models); larger sizes optional
(optional 19.5-inch x 6.75-inch size in steel and aluminum)

Tires:

standard sizes range from 245/70R19.5F (most Class 6 models) to 11R22.5H and 12R22.5H (Class 8 models); highway tread

 

Dimensions

 

Exterior

Wheelbase (in / mm):

Regular Cab: 152 / 3861

Crew Cab: 194 / 4928, 217 / 5512, 229 / 5817, 248 / 6299, 260 / 6604
Lo Pro: 248 / 6299

Overall length (in / mm):

Regular Cab: 240.3 / 6104

Crew Cab: 299.7 / 7612, 335.9 / 8532, 354 / 8992, 378.1 / 9604, 409.2 / 10394

Lo Pro: 378.1 / 9604

Overall width (in / mm):

95.8 / 2433 (114.9 / 2919 w/ mirrors)

Step-in height (in / mm):

Regular Cab: 45.6 / 1158

Crew Cab: varies by model and tire size
Lo Pro: 38.5 / 978

Frame width (in / mm):

34 / 863.6 (80,000 psi frame-rail yield strength)

Approach / departure angle (deg):

Regular Cab: 38.3 / 34.3

Crew Cab: varies by model and tire size
Lo Pro: 26 / 13.6

Track (in / mm):

Regular Cab and Crew Cab: front: 81.8 / 2078
rear: 71.6 / 1819

Lo Pro: front: 83.3 / 2116
rear: 75.1 / 1908

Minimum ground clearance
(in / mm):

Regular Cab: 10.7 / 271.8

Crew Cab: varies by model and tire size
Lo Pro: 7.0 / 177.8

GVWR (lb / kg):

19501 / 7279 (Class 6) to
61000 / 22768 (Class 8)
 

Interior

Minimum head clearance
(in / mm):

4.6 / 116.8

Leg room (in / mm):

front: 39.9 / 1014
rear: 39.4 / 1001

Shoulder room (in / mm):

front: 68.8 / 1748
rear: 67.4 / 1712 (Crew Cab: 69.4 / 1763)

Mirrors, surface area
(sq in / sq cm):

120 / 774 (outside-mounted mirrors only)

Crew Cab: 128 / 826, outside mirrors only)
 

Capacities

Fuel tank (gal / L):

53 / 201 (single LH step standard, all except Lo Pro)
53 / 201 (single RH step, optional)
80 / 303 (53 LH step and 27 RH step, optional)
106 / 401 (53 LH and RH step - dual, optional)
38 / 144 (single LH step, Lo Pro, standard)
76 / 288 (38 LH and RH step, Lo Pro, optional)