I wanna know if this would work too, 66rfes gears are nicer.


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2006 CRD - GTB2056 turbo by Dieselguy86, Eco Trans Tune, Lift Pump, Week's, HDS Tstat, Racor Filter, ARP's, OME 790's+Top Plate, JBA 2.5", JBA UCA, Moab's+265/75R16, ARB Bull Bar, 4.10's, TrueTracs

The 66rfe is a true six speed transmission.
To be able to use one you would need to figure out how to program the TCM to use all six gears successively.
Or install a aftermarket stand-alone transmission controller that can be programmed easily.

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U.S. Army Retired

Update: It has been roughly three weeks or 600 miles since putting the 2015 transmission(65RFE) in the CRD. All is still well and to be honest, it has never shifted this good. After replacing both motor mounts, now the ride is sublime. When the transmission was out, I pulled the wiring harness out and wrapped it with new split loom and cloth tape. All the wires and transmission cooler lines near the exhaust were ran through high temp reflective sleeves. I tried to fix everything that I think mopar cut a corner on. The PLASTIC bearing in the transfer case extension which has a ton of play made me think WTF Chrysler? I installed the correct bearing from the 2wd extension. Obviously it was or became an issue because Mopar doesn't even list that plastic bearing as a part that is available.

The valve body in the new transmission 2012+ is different but will function exactly the same as long as you use a white plug solenoid pack.

Now to just get new tires so that I don't die when it rains.