The XJ axle perches are too wide for the MJ. You need to weld new perches on at 42" width for the MJ. The XJ is 44". I just tossed an 8 1/4 under my MJ, hence the promptness of the axle perches.
i don't have a mj yet. i have an xj for sale now with a locked 8.25 in it. but if i can't find a buyer or a trade i'm considering finding a mj body to swap all of my stuff into.
The XJ axle perches are too wide for the MJ. You need to weld new perches on at 42" width for the MJ. The XJ is 44". I just tossed an 8 1/4 under my MJ, hence the promptness of the axle perches.