Models:

3500HD reg. cab, long box, 2WD & 4WD

3500HD ext. cab, long box, 2WD & 4WD

3500HD crew cab, long box, 2WD & 4WD

Body style / driveline:

2-3 passenger regular cab or 5-6 passenger extended cab,

5-6-passenger crew cab

1-ton; 2- and 4-wheel-drive heavy duty pickup

Construction:

body on frame

EPA vehicle class:

full-size truck

Manufacturing location:

Pontiac, Mich.; Flint, Mich.

Key competitors:

Ford Super Duty Series pickup, Dodge Ram heavy duty pickup

Vortec 6.0L V-8 (LY6)

Duramax 6.6L V-8 (LMM)

Type:

6.0L V-8

6.6L V-8

Displacement (cu in / cc):

364 / 5967

403 / 6599

Bore & stroke (in / mm):

4.00 x 3.62 / 101.6 x 92

4.06 x 3.9 / 103 x 99

Block material:

cast iron

cast iron

Cylinder head material:

cast aluminum

cast aluminum

Valvetrain:

OHV

OHV

Ignition system:

coil-near-plug, platinum- tipped spark plugs, low-resistance spark plug wires

compression, glow plug start aid

Fuel delivery:

sequential fuel injection

direct injection diesel with high pressure common rail

Compression ratio:

9.6:1

16.8:1

Horsepower (hp / kW @ rpm):

360 / 268 @ 5400* (up to 10,000-lb GVWR)
322 / 240 @ 4400 (more than 10,000-lb GVWR)

365 / 272 @ 3200

Torque (lb-ft / Nm @ rpm) :

380 / 515 @ 4200* (all GVWR ratings)

660 / 895 @ 1600

Recommended fuel:

regular unleaded

diesel

Maximum engine speed (rpm):

6000

3450

Emissions controls:

3-way catalytic converter, positive crankcase ventilation, evaporative collection system

turbocharged, intercooled, catalytic converter system; diesel particulate filter system with regeneration

Hydra-Matic 6L90

Allison 1000

Type:

6-speed automatic (w/ Vortec 6.0L)

6-speed automatic (w/ Duramax 6.6L)

Gear ratios (:1):

First:

4.03

3.10

Second:

2.36

1.81

Third:

1.53

1.41

Fourth:

1.15

1.00

Fifth:

0.85

0.71

Sixth:

0.67

0.61

Reverse:

3.06

4.49

Final drive ratio:

Vortec 6.0L: 3.73 or 4.10
Duramax 6.6L: 3.73

Front:

all models: std long- and short-arm independent front torsion bar suspension

Rear:

semi-elliptic 3-stage multi-leaf spring

Steering type:

integral power-assisted recirculating ball

Steering ratio:

Reg. Cab Long Box w/SRW: 18.6-16.1:1 variable ratio
Reg. Cab Long Box w/DRW: 15-13:1 variable ratio
Ext. Cab Long box: 15-13:1 variable ratio
Crew Cab Long Box: 15-13:1 variable ratio

Steering wheel turns, lock-to-lock:

Reg. Cab Long Box w/SRW: 3.97

Regular Cab

Extended Cab

Crew Cab

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

45.3 / 13.8 (2WD & 4WD – with single rear wheels)

52.5 / 16 (2WD & 4WD – with single rear wheels)

55.1 / 16.8 (2WD & 4WD – with single rear wheels)

Type:

power-assisted, Hydroboost brake-apply system, 4-wheel disc, 4-wheel ABS

Rotor diameter x thickness
(in / mm):

front: 12.8 x 1.5 / 325 x 38
rear: 12.8 x 1.2 / 325 x 30

Total swept area
(sq in / sq cm):

front: 245.5 / 1584
rear: 235.1 / 1517

Wheel size and type:

Single rear wheel:

16-inch x 7-inch steel
16-inch x 7-inch steel chrome-clad
17-inch x 7.5-inch aluminum, bright-machined

Dually:

17-inch x 6.5-inch steel
17-inch x 6.5-inch steel chrome-clad

Tire size:

Single rear wheel:

LT265/75R16
LT225/75R17

Dually:

LT225/75R17 highway or on/off-road

Regular Cab
Long Box

Extended Cab
Long Box

Crew Cab
Long Box

Wheelbase (in / mm):

133 / 3378

157.5 / 4001

167 / 4242

Overall length (in / mm):

225 / 5714

249.2 / 6330

258.7 / 6572

Overall width (in / mm):

95.9 / 2436

95.9 / 2436

95.9 / 2436

Overall height: (in / mm):

2WD: 77 / 1944
4WD: 75.6 / 1919

2WD: 76 / 1931
4WD: 75.9 / 1927

2WD: 76 / 1931
4WD: 76.1 / 1934

Track – front (in / mm):

68.6 / 1742

68.6 / 1742

68.6 / 1742

Track – rear w/single rear wheel (in / mm):

66 / 1676

66 / 1676

66 / 1676

Track – rear w/dual rear wheel (in / mm):

74.4 / 1897

74.4 / 1897

74.4 / 1897

Minimum ground clearance
(in / mm):

2WD: 9.1 / 233
4WD: 9.1 / 233

2WD: 9.1 / 233
4WD: 9.1 / 233

2WD: 9.1 / 233
4WD: 9.1 / 233

Step-in height (in / mm):

24.6 / 625

24.6 / 625

24.6 / 625

GVWR (lb / kg)

Curb Weight (lb / kg)

Payload (lb / kg)

Reg cab, long box (2WD) with single rear wheels:

6.0L: 9500 / 4309

6.0L: 4888 / 2564

6.0L: 4712 / 2137

Reg cab, long box (4WD) with single rear wheels:

6.0L: 9900 / 4490
6.6L: 9900 / 4490

6.0L: 5739 / 2603
6.6L: 6399 / 2902

6.0L: 4186 / 1899
6.6L: 3526 / 1599

Reg cab, long box (4WD) with dual rear wheels:

6.0L: 11400 / 5171
6.6L: 11400 / 5171

6.0L: 6091 / 2763
6.6L: 6751 / 3062

6.0L: 5309 / 2408
6.6L: 4649 / 2109

Ext cab, long box (2WD) with single rear wheels:

6.0L: 9700 / 4400
6.6L: 9700 / 4400

6.0L: 5896 / 2674
6.6L: 6543 / 2983

6.0L: 4004 / 1816
6.6L: 3357 / 1522

Ext cab, long box (2WD) with dual rear wheels:

6.0L: 11400 / 5171
6.6L: 11400 / 5171

6.0L: 6274 / 2846
6.6L: 6921 / 3139

6.0L: 5126 / 2324
6.6L: 4480 / 2032

Ext cab, long box (4WD) with single rear wheels:

6.0L: 9900 / 4490
6.6L: 9900 / 4490

6.0L: 6153 / 2791
6.6L: 6815 / 3091

6.0L: 3747 / 1699
6.6L: 3086 / 1400

Ext cab, long box (4WD) with dual rear wheels:

6.0L: 11400 / 5171
6.6L: 11400 / 5171

6.0L: 6521 / 2958
6.6L: 7183 / 3258

6.0L: 4879 / 2213
6.6L: 4217 / 1913

Crew cab, long box (2WD) with single rear wheels:

6.0L: 9800 / 4445
6.6L: 9800 / 4445

6.0L: 6027 / 2734
6.6L: 6678 / 3029

6.0L: 3873 / 1757
6.6L: 3222 / 1461

Crew cab, long box (2WD) with dual rear wheels:

6.0L: 11400 / 5171
6.6L: 11400 / 5171

6.0L: 6404 / 2905
6.6L: 7055 / 3200

6.0L: 4996 / 2261
6.6L: 4345 / 1971

Crew cab, long box (4WD) with single rear wheels:

6.0L: 9900 / 4490
6.6L: 9900 / 4490

6.0L: 6308 / 2861
6.6L: 6994 / 3172

6.0L: 3592 / 1629
6.6L: 2906 / 1318

Crew cab, long box (4WD) with dual rear wheels:

6.0L: 11400 / 5171
6.6L: 11400 / 5171

6.0L: 6672 / 3026
6.6L: 7358 / 3337

6.0L: 4728 / 2144
6.6L: 4042 / 1833

Cargo volume (cu ft / L):

76.6 / 2170

Length at floor (in / mm):

97.6 / 2479

Width at floor (in / mm):

62.4 / 1586

Tailgate width (in / mm):

61.5 / 1564

Width between wheel housings (in / mm):

50.6 / 1286

Inside height (in / mm):

21.3 / 541

Regular Cab

Extended Cab

Crew Cab

Headroom (in / mm):

41.4 / 1051

front: 41.2 / 1048

front: 41.2 / 1048

rear: 39.2 / 998

rear: 40.5 / 1030

Legroom (in / mm):

41.3 / 1049

front: 41.3 / 1049

front: 41.3 / 1049

rear: 34.3 / 872

rear: 39 / 991

Shoulder room (in / mm):

65.2 / 1657

front: 65.2 / 1657

front: 65.2 / 1657

rear: 65.3 / 1658

rear: 65.1 / 1655

Hip room (in / mm):

62.5 / 1588

front: 62.5 / 1588

front: 62.5 / 1588

rear: 61.8 / 1570

rear: 65.4 / 1663

Regular Cab

Extended Cab

Crew Cab

Seating:

2 / 3

5 / 6

5 / 6

Fuel tank (gal / L):

34 / 129

34 / 129

34 / 129

Engine oil (qt / L):

6.0L: 6.0 / 5.7
6.6L: 10 / 9.5

6.0L: 6.0 / 5.7
6.6L: 10 / 9.5

6.0L: 6.0 / 5.7
6.6L: 10 / 9.5

Cooling system (qt / L):

6.0L: 16.4 / 15.5
6.6L: 25.4 / 24

6.0L: 16.4 / 15.5
6.6L: 25.4 / 24

6.0L: 16.4 / 15.5
6.6L: 25.4 / 24

Trailer towing maximum with ball hitch (lb / kg):

Reg. cab, long box with single rear wheels:

2WD w/ 6.0L (4.10 axle): 12600 / 5715
4WD w/ 6.0L (4.10 axle): 12500 / 5670
4WD w/ 6.6L (3.73 axle): 13000 / 5897

Reg. cab, long box with dual rear wheels:

4WD w/ 6.0L (4.10 axle): 12200 / 5443
4WD w/ 6.6L (3.73 axle): 13000 / 5897

Ext. cab, long box with single rear wheels:

2WD w/ 6.0L (4.10 axle): 12400 / 5624
2WD w/ 6.6L (3.73 axle): 13000 / 5897
4WD w/ 6.0L (4.10 axle): 12100 / 5488
4WD w/ 6.6L (3.73 axle): 13000 / 5897

Ext. cab, long box with dual rear wheels:

2WD w/ 6.0L (4.10 axle): 12000 / 5443
2WD w/ 6.6L (3.73 axle): 13000 / 5897
4WD w/ 6.0L (3.73 axle): 11700 / 5307
4WD w/ 6.6L (3.73 axle): 13000 / 5897

Crew cab, long box with single rear wheels:

2WD w/ 6.0L (4.10 axle): 12200 / 5443
2WD w/ 6.6L (3.73 axle): 13000 / 5897
4WD w/ 6.0L (4.10 axle): 11900 / 5398
4WD w/ 6.6L (3.73 axle): 13000 / 5897

Crew cab, long box with dual rear wheels:

2WD w/ 6.0L (4.10 axle): 11800 / 5352
2WD w/ 6.6L (3.73 axle): 13000 / 5897
4WD w/ 6.0L (4.10 axle): 11600 / 5261
4WD w/ 6.6L (3.73 axle): 13000 / 5897