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68RFE Transmission

68RFE Transmission Specs & Gear Ratios

 

 

 

 

The 68RFE is a diesel specific transmission, unlike previous designs, engineered specifically to meet the needs of the 6.7L Cummins turbo diesel. The transmission's bandless design and upgraded filtration system extend maintenance intervals and reduce service costs. Additionally, the transmission is significantly stronger than Chrysler's 47RE & 48RE proved to be. Finally, the inline 6 Cummins has a 6 speed transmission to utilize all the engine's torque.

 

68RFE Gear Ratios

Gear:

1

2

3

4

5

6

R

Ratio:

3.23 : 1

1.84 : 1

1.41 : 1

1.00 : 1

0.82 : 1

0.63 : 1

4.44 : 1

 

68RFE Transmission Specs

Transmission:

68RFE 6 speed automatic transmission

Manufacturer:

Chrysler

Production Run:

2007.5 - present Dodge Ram (6.7L Cummins)

ATF:

ATF + 4

Transmission Weight:

263 lbs

Features:

• Dual fluid filters for extended service intervals.
• 60,000 or 120,000 maintenance intervals, depending on service cycle (see owner's manual for your application).
• Torque converter lockup in gears 2 - 6.
• Dual face torque converter clutch (47RE & 48RE were single faced).
• Integrated tow/haul mode provides aggresive shift schedule when you need it.
• Bandless design reduces maintenance requirements.