Ok, well learned that the 2000 Cherokees had a Lp30 so my 1999 Cherokee is the donor Hp30 and the Lp30 is going into the 1999 Cherokee, so far have the home out of old red and starting to pull old parts off of it first the unit hub bearings, next is the ball joints, then the Axel shafts, get rid of the gears, carrier, and replace the gears to 4.88 and replace the carrier with an ARB air locker with a 30 spline Axel shafts.