Okay I dug into a little farther it does seem like any RockTrac will work,be auto or manual.For some reason I remember something about the manual trans RockTracs being different and couldn't be used on a auto trans.

Sorry and disregard my last,seems like it will work.


Found this on Novaks website...........

You kinda got me worried about it now since i dont have a 42RLE but the 545RFE but have found a few dakotas with the swap done with the 545rfe. But they also pointed out the fact that there are quite a few different output shafts for 545RFE so I will be calling jeep in the am since a dealer can't seem to give me and answer. Unless someone else can point me to a website with the information since my VIN is the only way to get it.

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Yes there are 3 different lengths of output shafts for the 45RFE/545RFE.Sad to say your VIN will not be of any help for telling you which one you have.The only way if to pull the t-case off and measure.

Short shaft---trans output is about 1/4" inside the trans/t-case adapter
Mid-length shaft---trans output flush with trans/t-case adapter
Long shaft---trans output sticks out about 1/4" past the trans/t-case adapter

I had fun when ordering my Atlas for the same issue.


If it makes you feel any better Wally's SFA KJ is a '02 with the 45RFE and has a RockTrac and besides the driveshaft mods no other mods needed when they mounted it in his KJ.

So basically there is no possible way to tell with dropping my T-case? I mean couldn't I atleast tell if I had the long without having to do it. And any idea why all the different outputs?

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Just got off the phone with advanced adapters shop manager who said it will work. Even the position señor will work do all I will need are drive shafts.

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