The 68RFE pump was the first problematic area that we addressed. Our engineers were able to determine the amount of clamping force needed to make the clutches hold. Unfortunately, the factory...
Warning: This product can expose you to chemicals that are known to the State of California to cause cancer. For more information, visit www.P65warnings.ca.gov.
The 68RFE transmission is the big brother to the 45/545RFE transmission. The RFE platform was originally designed by Chrysler and was introduced in 1999 with the debut of the new Jeep Grand Cherokee.
The "RFE" stands for Rear-wheel drive Fully Electronic control. The RFE design was mostly noted in the new design to have 3
planetary sets for a 4-speed transmission in the 45RFE.
In 2007, Chrysler debuted the new 6.7 Powerplant in the all new Dodge Ram, and Dodge wanted a transmission that was specifically designed for function. The previous platform utilized the Torqueflite 48RE platform and had been around since the late 50's when they released the first 727 in 1956 after purchasing the license from Simpson on the gearset in 1955.
The 46/47/48 Chrysler platforms were 3 and 4-speed units that were mechanically and hydraulically controlled, with the most notable control system being governor pressure.
The first improvement Chrysler wanted to make over the Torqueflite platform was, obviously, the amount of forward gear. For the 68RFE transmission, Chrysler opted to change to a six-speed unit. The additional gears allowed Chrysler to add higher 1st-gear ratios and tighter shift recovery from one gear to the next. The tighter shift recovery essentially keeps the vehicle in higher averaged horsepower and torque numbers, while also adding torque multiplication.
The gear ratios were increased. as well. The new 68RFE boasts a whopping 3.23:1 first gear, compared to the 2.45:1 first gear found in the previous 47/48RE platform. Chrysler also increased second gear to a 1.83:1 versus the 1.45:1 found previously. The 68RFE was also given two overdrive gears, with 5th being .81:1 and 6th with the very deep .62:1. The predecessor had a single overdrive that was a .69:1.
The SunCoast Guardian Heavy Duty (XD) line of transmissions is designed around the stress and rigors demanded with heavy duty towing, hauling and work applications. Every aspect of the Guardian HD...
For the DIYer, Randy's offers a complete 68RFE Transmission Rebuild kit with everything you need to take your 68 from stock to capable of performing the way it should!
SunCoast is proud to release its new Pro-Loc Ducenti 200psi Shift Calibration Kit for the 68RFE. What we present to you today is not just a haphazardly put together solution but the cumulation of...
Destroyed your stock 68RFE? Have a cracked housing? Randy's Transmission has fully stock Crate Transmissions for you!
Stage 4 Master Built-It Transmission Kit; Incl. Basic Rebuilt Parts/ProTect 68/Gaskets/Hardware;Same parts used in our own performance transmissions; Custom valve body separator plate with gaskets...
Randy's Best selling Transmission! Capable of 750hp Max and requires transmission Tuning to run the best. Same transmission as seen in Randy's Red Delicious!