bought a 241 from an 03 rubi and I'm wondering what I'll need to swap it in my 99 TJ 6cyl? I'm guessing things are gonna swap in well but the differences in tranny's (rubi's 3500 vs. mine) has got me wondering. Thanks for any input!!

Not sure if you have a body lift or aftermarket or lowered crossmember, but the t-case is larger and you might run into clearance issues.

You'll either have to modify/fab a new trans mount plate or get one from a Rubicon.

You have to change yokes if your 99 runs 1310 series ds ujoints.