The 68RFE, which does not have PTO provisions, is specific to Ram pickups. Chassis cab trucks equipped with the 6.7L Cummins Turbodiesel were offered alternatively with an Aisin AS68RC automatic transmission, which does include PTO provisions. The six speed automatic transmission remains in use today, although the High Output Cummins platform available in Ram 3500 models come standard equipped with an Aisin AS69RC, which has a greater input torque capacity than the 68RFE. The AS69RC and AS68RC, although similar by design, are different products and should not be confused with one another.
Chrysler 68RFE Ratios
| 1st | 2nd | 3rd | 4th | 5th | 6th | R |
| 3.23 : 1 | 1.84 : 1 | 1.41 : 1 | 1.00 : 1 | 0.82 : 1 | 0.63 : 1 | 4.44 : 1 |
Chrysler 68RFE Specs
| Transmission | Chrysler 68RFE | |
| Type | 6 speed automatic transmission, double overdrive | |
| Predecessor | Chrysler 48RE | |
| Model Years/Applications | 2007.5 - 2010 Dodge Ram 2500/3500 2011 - present Ram Trucks Ram 2500/3500 Excludes high output 6.7L Cummins in applicable model years |
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| Case Material | Aluminum | |
| Max Input Torque | N/A, Chrysler strength designation "8" | |
| Weight | ~ 263 lbs | |
| ATF Type/Spec | ATF+4 automatic transmission fluid | |
| Transmission Filter P/N | External filter | MOPAR 5015267AD |
| Sump filter | MOPAR 5013470AE | |
| Service Intervals | Replace fluid and transmission filters every 120,000 miles (normal service) or 60,000 miles (severe duty) | |
| Features | • Dual transmission fluid filters • Dual face torque converter lockup clutch • Torque converter lockup capable in forward gears 2 through 6 • Integrated tow/haul mode provides alternative shift schedule for towing • Band-less design reduces maintenance requirements |
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