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2008 Ram Technical Specifications 09/01/2007
Engine
4.7 Liter
Corsair
V8
5.7Liter Hemi
MDS V8
5.7 Liter HEMI
V8
5.9 Liter
Cummins
Diesel
5.7 Liter HEMI
V8
6.7 Liter
Cummins
Diesel
6-Speed
Manual
GETRAG 238
6-Speed
Manual
G56
6-Speed
Manual
G56
6-Speed
Manual
G56
6-Speed
Manual
G56
5-Speed Auto
545RFE
5-Speed Auto
545RFE
5-Speed Auto
545RFE
Auto 6-Speed
HD 68RFE
5-Speed Auto
545RFE
Auto 6-Speed
HD 68RFE
310mm 290mm 318mm 290mm 318mm
Front Tip
Front Rail
Center Rail
Kickup Front
Kickup Rear
Rea
Standard
Max Avail
NOTE: Bold items are optional.
6.39X.146
7.67x0.146
7.59x0.126
RAM 1500 PICKUP 4X4 RAM 2500 PICKUP 4X4 RAM 3500 PICKUP 4X4
6.5 and 8.0 Box 6.5 and 8.0 Box 6.5 and 8.0 Box
Transmission
Transfer Case
2-Spd Elec Shift NV243
Part Time
2-Speed Manual NV271
with shift on the fly
2-Speed Manual NV271
with shift on the fly
2-Speed electric shift NV246 On
demand Auto
2-Speed electric shift NV273
with shift on the fly
2-Speed electric shift NV273
with shift on the fly
Clutch
Frame Side Rail Dimensions
(in) Height x Thickness
5.84x0.137 7.44X.165 7.44X.165
7.09x0.126 7.76X.125 7.76X.125
5.47x0.126
6.39X.146
5.20x0.106 6.18X.125 6.18X.125
Frame Section Modulus 5.5 9.28 9.28
Axle, Front Capacity (lb) 3,900 IFS 5,200 Solid Axle 5,200 Solid Axle
Axle, Rear Capacity (lb) 3,900 6,200 with 5.7L
6,500 with Diesel 6,500 SRW/9,350 DRW
Axle, Ratio to 1 3.55,3.92 3.42, 3.73, 4.10 3.42, 3.73, 4.10
Brakes, Hydraulic
Inches (swept area) Front 13.22x1.10 Disc (126.5 in2) 13.9x1.39 Disc (313.2 in2) 13.9x1.39 Disc (313.2 in2)
Brakes, Hydraulic
Inches (swept area) Rear 13.85x0.86 Disc (121.1 in2) 13.9x1.18 Disc (309.6 in2) 13.9x1.18 Disc (309.6 in2)
10.0 Dual Diaphragm 10.0 Dual Diaphragm w/gas Hydroboost w/diesel
Booster
Outside diameter (in)
10.0 Dual Diaphragm w/gas Hydroboost w/diesel
and/or dual rear wheel
Fuel Tank Gallons 34 gal 6.5ft box
35 gal 8.0ft box
34 gal 6.5ft box
35 gal 8.0ft box
Steering
Power Assisted Rack & Pinion
Power Assisted RCB
8 ft box: 35 gallon
6 ft box: 26 gallon, 34 opt
Tire Sizes
P245/70R17 LT245/70R17E LT265/70R17E SRW
LT235/80R17E DRW
LT275/70R17
P275/60R20 LT265/70R17E LT265/70R17E SRW
LT235/80R17E DRW
Wheels, Type (in)
5-hole disk 17x8.0 or 20x9.0
8-hole disk 17x7.5 in & 17x8.0 in 8-hole disk 17x8.0 in SRW & 17x6.0 in DRW