Chrysler 68RFE Transmission

68RFE Transmission Specs & Ratios

Chrysler's first diesel specific transmission, the 68RFE was introduced alongside the 6.7L Cummins turbodiesel midway into the 2007 model year. The transmission's band-less design and upgraded filtration system have proved to be significant improvements over previous transmission designs, permitting extended service intervals and promoting reduced service costs.

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
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