| Clutch Size (in) | |
| Clutch Size (in) | 11.9 |
| Clutch Size (in) | 13.0 |
| Drivetrain | Rear Wheel Drive |
| Fifth Gear Ratio (:1) | 0.71 |
| Fifth Gear Ratio (:1) | 1.00 |
| First Gear Ratio (:1) | 3.11 |
| First Gear Ratio (:1) | 5.79 |
| Fourth Gear Ratio (:1) | 1.00 |
| Fourth Gear Ratio (:1) | 1.30 |
| Reverse Ratio (:1) | 2.88 |
| Reverse Ratio (:1) | 5.23 |
| Second Gear Ratio (:1) | 2.22 |
| Second Gear Ratio (:1) | 3.30 |
| Sixth Gear Ratio (:1) | |
| Sixth Gear Ratio (:1) | 0.72 |
| Third Gear Ratio (:1) | 1.55 |
| Third Gear Ratio (:1) | 2.10 |
| Trans Description Cont. | Automatic w/OD |
| Trans Description Cont. | Manual w/OD |
| Trans Description Cont. Again | |
| Trans Order Code | 445 |
| Trans Order Code | 447 |
| Trans Order Code | 44B |
| Trans Order Code | 44T |
| Trans Power Take Off | |
| Trans Power Take Off | SAE 6-Bolt |
| Trans PTO Access | |
| Trans PTO Access | SAE 6-Bolt |
| Trans Type | 5 |
| Trans Type | 6 |
| Transfer Case Gear Ratio (:1), High | |
| Transfer Case Gear Ratio (:1), Low | |
| Transfer Case Model | |
| Transfer Case Power Take Off | |
| Curb Weight - Front (lbs) | 3925 |
| Curb Weight - Front (lbs) | 3975 |
| Curb Weight - Front (lbs) | 4646 |
| Curb Weight - Front (lbs) | 4692 |
| Curb Weight - Rear (lbs) | 3033 |
| Curb Weight - Rear (lbs) | 3113 |
| Curb Weight - Rear (lbs) | 3184 |
| Curb Weight - Rear (lbs) | 3268 |
| Gross Axle Wt Rating - Front (lbs) | 5200 |
| Gross Axle Wt Rating - Front (lbs) | 5600 |
| Gross Axle Wt Rating - Front (lbs) | 6000 |
| Gross Axle Wt Rating - Front (lbs) | 6500 |
| Gross Axle Wt Rating - Front (lbs) | 7000 |
| Gross Axle Wt Rating - Rear (lbs) | 13660 |
| Gross Axle Wt Rating - Rear (lbs) | 14700 |
| Gross Combined Wt Rating (lbs) | 26000 |
| Gross Combined Wt Rating (lbs) | 28000 |
| Gross Combined Wt Rating (lbs) | 33000 |
| Gross Vehicle Weight Rating Cap (lbs) | 17950 |
| Gross Vehicle Weight Rating Cap (lbs) | 19000 |
| Gross Vehicle Weight Rating Cap (lbs) | 19500 |
| Total Cooling System Capacity (qts) | 27.5 |
| Total Cooling System Capacity (qts) | 30.5 |
| Displacement | 6.4L/391 |
| Displacement | 6.8L/415 |
| Engine Oil Cooler | |
| Engine Order Code | 99R |
| Engine Order Code | 99Y |
| Engine Type | Gas V10 |
| Engine Type | Turbo Diesel V8 |
| Fuel System | DI |
| Fuel System | SEFI |
| SAE Net Horsepower @ RPM | 325 @ 3000 |
| SAE Net Horsepower @ RPM | 362 @ 4750 |
| SAE Net Torque @ RPM | 457 @ 3250 |
| SAE Net Torque @ RPM | 600 @ 2000 |
| Axle Capacity - Front (lbs) | 7000 |
| Axle Capacity - Rear (lbs) | 13660 |
| Axle Ratio (:1) - Front | |
| Axle Ratio (:1) - Rear | 4.10 |
| Axle Ratio (:1) - Rear | 4.30 |
| Axle Ratio (:1) - Rear | 4.88 |
| Axle Ratio (:1) - Rear | 5.38 |
| Axle Type - Front | Monobeam |
| Axle Type - Rear | Full-Floating |
| Shock Absorber Diameter - Front (mm) | 35 |
| Shock Absorber Diameter - Rear (mm) | 35 |
| Spring Capacity - Front (lbs) | 5200 |
| Spring Capacity - Front (lbs) | 5600 |
| Spring Capacity - Front (lbs) | 6000 |
| Spring Capacity - Front (lbs) | 6500 |
| Spring Capacity - Front (lbs) | 7000 |
| Spring Capacity - Rear (lbs) | 13660 |
| Stabilizer Bar Diameter - Front (in) | 1.26 |
| Stabilizer Bar Diameter - Rear (in) | 1.26 |
| Suspension Type - Front | Coil Spring |
| Suspension Type - Rear | Multi-Leaf |
| Cold Cranking Amps @ 0? F (2nd) | |
| Cold Cranking Amps @ 0? F (2nd) | 750 |
| Cold Cranking Amps @ 0? F (Primary) | 650 |
| Cold Cranking Amps @ 0? F (Primary) | 750 |
| Maximum Alternator Capacity (amps) | 155 |
| Maximum Alternator Capacity (amps) | Dual 160 |
| Maximum Alternator Capacity (amps) | HD 200 |
| Maximum Alternator Watts | - TBD - |
| Maximum Alternator Watts | 2100 |
| Maximum Alternator Watts | 2700 |
| EPA Greenhouse Gas Score | |
| Brake ABS System | 4-Wheel |
| Brake ABS System (Second Line) | |
| Brake Type | Pwr |
| Disc - Front (Yes or ) | Yes |
| Disc - Rear (Yes or ) | Yes |
| Drum - Rear (Yes or ) | |
| Front Brake Rotor Diam x Thickness (in) | 14.53 x 0.47 |
| Rear Brake Rotor Diam x Thickness (in) | 15.35 x 0.47 |
| Rear Drum Diam x Width (in) | |
| EPA Fuel Economy Est - City (MPG) | |
| EPA Fuel Economy Est - Hwy (MPG) | |
| Fuel Economy Est-Combined (MPG) | |