Transmission general data
The 6-speed automatic transmission 68RFE produced by Chrysler has been installed since 2006 on pickups Dodge RAM 2500-3500 with engine capacity of 6 liters and higher. In terms of design, this transmission is based on 45RFE and on the 5-speed 5-45RFE.
Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type6ATAWD15,76,5Mopar ATF+4
Technical issues and repair guidelines
During the reassembly, specialists use the following repair kits:
-Kit of gaskets and seals or a complete kit of gaskets, seals, frictions and steel discs (Master Kit)
- Kit of pistons (5 pieces). Many details and spare parts are common with the 5-45RFE.
- The complete kit of friction components is ordered for the automatic transmission reassembly.
The valve body and the block of solenoids are the main vulnerabilities for the 5-45RFE transmission. After 100 thousand kilometers, it is required to monitor the state of these components (oil pressure, cleaning). The valve body and solenoids often reach the end of their service lifespan after 3-5 years of active exploitation, especially with the worn torque converter clutch.
There are problems with the 68RFE torque converter (overrunning clutch, friction, gaskets). It is recommended to replace spare parts in the torque converter quite early, because of problems related to American torque converters.
Which cars run with this gearbox?BrandModelYearTypeEngineDodgePICKUP/RAM 2500-350009-166 SP R/4WDL6 6.7L
How to repair this transmission (Videos)Input Drum AssemblyOD clearance checkDRUM STACK-UPTeardown Inspection
Instruction manuals and useful linksLink typeSourceDescriptionpdfwww.at-manuals.comIntroduction to the 68RFEpdfwww.at-manuals.comScheme 68RFEpdfSonnaxValve Body Layout 68rfepdfSonnaxVacuum test 45RFE, 545RFE, 65RFE, 66RFE, 68RFEwebSonnaxSolving the 6R80 Transmission Leak Mystery