jeep axles are expensive to repair but a good axle non the less the transfercase from a jeep is very unreliable they have bad input shafts for the front and dana 30 and 35s are good but not past a 32 inch tire 33s are very hard on the axles and they tend to bend and twist under pressure they will need gusseting past a 32 there are alot of up grades but you will find that gearing is in the 3.08 and 3.55 gear ratio 4.10s were in the 4 clylinder maodels and hard to find. go yota they have 4.10 1986 and under and parts are cheap for them and stock can handle up to a 35 and they have better clearance and transfercases can ber modded for different gearing to more options and upgrades and really kind of the way to keep things cheap and they are very strong