If ya can ................. And it is worth it. Get a box from a 2000 and up TJ cos its got the NV3500 as fitted to the Ram for a year or two and the Dakota, its got a lower 1st 4.01 or some'at and a longer overdrive and it will take 350 ft lbs of V8 power so says the makers. Fitted one to my YJ 2 years ago with a Band M shift and so far its great cost me £400 but worth every penny. The AX 15 is fine but 33s and 35s will mullar the thing in short order. I know I've done 2!...........