Axles

  Regular
Cab/Crew
Cab 2WD
Regular
Cab/Crew
Cab 4WD
Motor
Home
2WD
Commercial
Cutaway
2WD
Front axle, 7,000 lbs capacity I-beam Wide-trac, up to 53 degree turn angle, includes 4-piston brake applied calipers Standard Not Available Standard Standard
Front axle, solid, 8,000 lbs capacity, up to 45 degree turn angle, includes 4-piston brake applied calipers, manual locking hubs Not Available Standard Not Available Not Available
Rear axle, single speed, full floating, 11,000 lbs capacity, includes 2-piston brake applied calipers Standard Not Available Standard Standard
Rear axle, single speed, full floating, 13,500 lbs capacity, includes 2-piston brake applied calipers Available Standard Available Available
Rear axle ratio, 4.30:1-5.13:1 Available Not Available Available Available
Rear axle ratio, 5.13:1 (Motor home 2WD and Commercial Cutaway 2WD requires gasoline engine) Standard Standard Standard Standard

Brakes

  Regular
Cab/Crew
Cab 2WD
Regular
Cab/Crew
Cab 4WD
Motor
Home
2WD
Commercial
Cutaway
2WD
Brakes, front 4-wheel disc, 4-channel ABS, 4-piston Standard Not Available Not Available Standard
Brakes, front 4-wheel disc, 4-channel ABS, 4-piston (Standard on Crew Cabs and Regular Cab 4WD and available on Regular Cab 2WD models) Available Standard Standard Not Available
Brakes, rear, 4-wheel disc, 4-channel ABS, 2-piston Standard Standard Standard Standard
Electronic traction control, utilizing ABS Available Not Available Available Available
Limited slip differential, rear Available Standard Available Available
Rear in-wheel park-brake hand lever operated Available Standard Available Available
Park brake, hand lever operated transmission mounted drum brake Standard Not Available Not Available Not Available
Park brake, foot pedal operated transmission mounted drum brake Not Available Not Available Standard Standard

Engines & Transmission

Engine Options  Trim Levels Horsepower Torque
(lb-ft.)
Regular/
Crew Cab
2WD
Regular/
Crew Cab
4WD
Motor
Home
2WD
Commercial
Cutaway
2WD
Vortec 8.1L V8 Gasoline Standard Standard Standard Standard 325 450
DURAMAX 6.6L Diesel - 2007 diesel emission regulations Available Available Available Available 300 520
DURAMAX 6.6L Diesel - 2007 diesel emission regulations Available Available Available Available 330 620
Engine Equipment  Regular
Cab/Crew
Cab 2WD
Regular
Cab/Crew
Cab 4WD
Motor
Home
2WD
Commercial
Cutaway
2WD
Air cleaner, dry type Standard Standard Standard Standard
Air cleaner, heavy-duty increase capacity design for severe dust conditions (N/A with diesel engines) Available Available Not Available Available
Air cleaner, underhood restriction gauge Available Available Available Available
Air compressor, electric, self contained, 12V Available Available Available Available
Alternator, AD244 Delco-Remy 150-amp maximum Standard Standard Standard Standard
Alternator, dual, 105-amp maximum (Requires gasoline engine) Available Available Not Available Available
Alternator, dual, 150-amp maximum (Requires diesel engine) Available Available Available Available
Battery, single, 600 cold cranking amps, 115-minute reserve capacity (Requires gasoline engine) Standard Standard Standard Standard
Battery, single, 700 cold cranking amps, 115-minute reserve capacity (Requires gasoline engine) Available Available Not Available Available
Battery, single, 770 cold cranking amps, 115-minute reserve capacity (Requires gasoline engine) Available Available Not Available Available
Battery, dual, 700 cold cranking amps, 360 minute reserve capacity (With gasoline engines, battery isolator is not available) Available Available Not Available Available
Battery, dual, 750 cold cranking amps, 320 minute reserve capacity (Standard with diesel engines and available with gasoline engine) Available Available Available Available
Battery, triple, 700 cold cranking amps, 540 minute reserve capacity (Available with diesel engines only) Available Available Not Available Available
Battery, isolator, available for specialty applications Available Available Not Available Available
Electric hand throttle, (activation switch) IP mounted, when activated, adjusts engine rpms, includes cruise control Available Available Not Available Available
Electronic traction control, utilizing ABS Available Not Available Available Available
Engine block heater, 400-watt, 110V (Gasoline engines only) Available Available Available Available
Engine block heater, 1,000-watt, 120V (Diesel engines only) Available Available Available Available
Engine exhaust brake (Requires diesel engine) Available Available Available Available
Engine speed controls, high idle switch RPM is preset, located on instrument panel Available Available Available Available
Engine shutdown, automatic with alarm, activated by low or high engine oil pressure, and high coolant temperature, standard with diesel engine and optional with gasoline engines. Available Available Available Available
Engine warning without automatic engine shutdown, (Requires diesel engine, Available only on Reg Cabs and Commercial Cutaway) Available Not Available Not Available Available
Exhaust system, single horizontal, passenger side mounted inside frame rail, stainless-steel with gasoline engines, 409 stainless steel with diesel engines Standard Standard Not Available Not Available
Exhaust system, over the axel, passenger side rear exit (Available on Regular Cab 2WD only) Available Not Available Available Available
Exhaust system, side exit forward of right rear wheels Available Not Available Standard Standard
Limited slip differential, rear Available Standard Available Available
Radiator hoses, silicone includes upper and lower hoses Available Available Available Available
Road speed governor, controlled by the speed rating of the tires ordered, which will be less than or equal to 75 mph Available Standard Available Available
Road speed governor, controlled by the speed rating of the tires ordered, which will be less than or equal to 85 mph Standard Not Available Standard Standard
Road speed governor, 65 mph Available Available Available Available
Transmissions Equipment  Regular
Cab/Crew
Cab 2WD
Regular
Cab/Crew
Cab 4WD
Motor
Home
2WD
Commercial
Cutaway
2WD
Transmission, automatic, Allison 1000 Series 6-speed - with 4th Generation Electronic Controls and 0.61 overdrive. Standard on post 07i engines Standard Standard Standard Standard
Transmission, automatic, Allison 1000HS Highway Series Standard Standard Not Available Standard
Transmission, automatic, Allison 1000RDS Rugged Duty Series, requires power take-off option Available Available Not Available Available
Transmission, automatic, Allison 1000EVS Emergency Vehicle Series, standard with power take-off option (Requires diesel engine) Available Available Not Available Available
Transmission, automatic, Allison 1000PTS Pupil Transportation/Shuttle Series, not available with power take-off option Not Available Not Available Not Available Available
Transmission, automatic, Allison 2350 Highway Series, 6 speed with 4th Generation Electronic Controls and 0.61 overdrive Available Available Not Available Available
Transmission, automatic, Allison 2350 Rugged Duty Series, 6 speed with 4th Generation Electronic Controls and 0.61 overdrive Available Available Not Available Available
Transmission, automatic, fluid, synthetic TranSynd Standard Standard Standard Standard
Transmission, oil cooler, auxiliary, air to oil Available Available Available Available
Transfer case, 2-speed, electrically actuated IP mounted switch, includes shield Not Available Standard Not Available Not Available

Frames & Suspensions

  Regular
Cab/Crew
Cab 2WD
Regular
Cab/Crew
Cab 4WD
Motor
Home
2WD
Commercial
Cutaway
2WD
Frame reinforcement, L Channel 80,000 psi yield Available Available Not Available Not Available
Shock absorber, front, diameter 1.375" Standard Standard Standard Standard
Shock absorber, rear- not desired Standard Available Standard Standard
Shock Absorber, rear- included with tapered leaf optional with multi-leaf suspensions (Standard on Crew Cab 2WD and Motor Home 2WD) Available Available Standard Available
Stabilizer bar, front, 2" x 2" square tube Standard Standard Standard Standard
Stabilizer bar, rear, diameter 44mm (Standard on Crew Cab 2wd and available on Regular Cab 2WD models. Not available on Crew cab 4WD models.) Available Available Standard Available
Suspension, front, tapered leaf 7,000 lbs capacity (includes stabilizer) Standard Standard Standard Standard
Suspension, front, tapered leaf 8,000 lbs capacity Not Available Standard Not Available Not Available
Suspension, rear, multileaf, 11,000 lbs capacity (Standard on Regular Cab 2WD and available on Crew Cab 2WD models, requires single speed rear axle) Standard Not Available Not Available Standard
Suspension, rear, multileaf, 13,500 lbs capacity Available Standard Not Available Available
Suspension, rear, multi-leaf, 15,000 lbs capacity Available Not Available Not Available Available
Suspension, rear, tapered leaf, 11,000 lbs capacity (Standard on Crew Cab 2WD and available on Regular Cab 2WD models, requires single speed rear axle) Available Not Available Standard Available
Suspension, rear, tapered leaf, 13,500 lbs capacity Available Not Available Available Available
Suspension, Quiet-Ride spring package Available Available Available Available

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