Engines

Trim Level Horsepower Torque
(lb-ft.)
Work Van
Vortec 4.3L V6 (Standard and only available on 1500 RWD models) Standard 195 260
Vortec 4.8L V8 SFI FlexFuel (Standard and only available on AWD models) Standard 280 295
Vortec 5.3L V8 SFI FlexFuel; E85 is 85% ethanol and 15% gasoline. Visit www.livegreengoyellow.com to see if there is an E85 station near you. Available 310 334
Trim Level Horsepower Torque
(lb-ft.)
Work Van
Vortec 6.0L V8 SFI FlexFuel (Includes external engine oil cooler) Available 323 373
DURAMAX 6.6L Turbo Diesel V8 (Includes external engine oil cooler and two 770 CCA batteries) Available 250 460
Trim Level Horsepower Torque
(lb-ft.)
Work Van
DURAMAX 6.6L Turbo Diesel (Includes external engine oil cooler and two 770 CCA batteries) Available 250 460

Mechanical

  Work Van
Alternator, 105 amps Standard
Alternator, 145 amps Available
Alternator, 125 amps Standard
Alternator, Dual, 145 amps each (requires DURAMAX 6.6L Turbo Diesel V8 and air conditioning) Available
Auxiliary heat generator, fuel-operated (requires DURAMAX 6.6L Turbo Diesel V8) Available
Battery, 600 cold-cranking amps, maintenance-free with rundown protection and retained accessory power Standard
Battery, heavy-duty, 770 cold-cranking amps, maintenance-free with rundown protection and retained accessory power (not available with DURAMAX 6600 Turbo Diesel V8) Available
Batteries, dual heavy-duty, 770 cold-cranking amps each, maintenance-free with rundown protection and retained accessory power (included and only available with DURAMAX 6600 Turbo Diesel V8) Available
Cold climate package, includes engine block heater Available
Engine block heater Available
Exhaust, aluminized stainless-steel muffler and tailpipe Standard
Oil life monitor Standard
Switch, High Idle (requires DURAMAX 6600 Turbo Diesel V8) Available

Transmission

Features  Work Van
Rear axle, 3.42 ratio (standard on 1500 models) Standard
Rear axle, 3.73 ratio (standard on 2500 or 3500 models) Available
Transmission oil cooler, external Available
Transmission, 4-speed automatic, electronically controlled with overdrive, tow/haul mode, and internal transmission oil cooler (standard with Vortec 4.3L V6 MFI and Vortec 5.3L V8 SFI) Standard
Transmission, 6-speed automatic, heavy-duty, electronically controlled with overdrive and tow/haul mode and internal transmission oil cooler (standard with Vortec 4.8L V8 SFI FlexFuel engine or (L96) Vortec 6.0L V8 SFI FlexFuel.) Standard

Steering

Features  Work Van
Differential, heavy duty locking, rear Available
Steering, power Standard
Suspension, front, independent coil springs and stabilizer bar (requires RWD models) Standard
Suspension, front, independent torsion bar (computer selected) and stabilizer bar (requires AWD models) Standard
Suspension, rear, hypoid drive axle with multileaf springs Standard

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