Thanks thats great info guys!! Just to cover myself Im using the shafts, unit hubs, rotors, calipers and brake pads from my 2001 axle and installing it all on the unknown year hp30. I already have the upgraded spicer ujoints on the shafts.
Caronaxtr- did you have any issues running a hp in the xj since you have two pre cats on the exhaust system? I heard the pinion will contact them on full stuff. How much lift are you running? Im at 3" but have 2" spacers to use if needed
2015 Ford F350 crew cab, gasser
2001 Cherokee sport "AGENT ORANGE"
1991 Ford 7.3L IDI- FOR SALE