I have yet to see it and I need help. Had to cheep out and get the 07 X To replace the 03 Rubicon I had. Long story short I need to put the Rock-Trac NV241 into what I have.










76 CJ 35's and the 360, 77 and 78 J20, 78's has the 2nd 401 7" spring over shackal flip t18 dana 300 and a set of 38 swampers SSR, dana 44 and Eaton 2 1/2 ton with 4.56 ring and pinion 78 Cherokee Cheff, 03 Rubicon 2"lift 33 Swampers cold air intake(Hit a tree to fast and totalled it), 07 JK the same cold air intake,

 

so far as i can tell, the nv241 and nv241-or (rock track) have the exact same housing and you should be able to upgrade it simply by swapping out the planetary gears - or, so i would think. i really would love to see if this can work and if i had an nv241, i would head down to my dealer to see how much it would cost to get the parts i needed. install shouldn't be too difficult - time consuming for sure but not impossible to do with the right tools.