if your gears where not the same in both axles you would know! trust me. we swapped axles out of a dodge power wagon and miss counted the teeth and pow!! we crapped out a d70 ring rear and pinion. i am willing to bet it is the chain. just needs rebuilt.
94 yj, 4" procomp lift, 3" body lift, sliders, cshr corners, d44 e locker rear swap, 35" bfg at's, 4.10 gears, crown 7 layer brake lines, jks discos, jks track bar disco, 97cherokee 4.0 swap.
next up twizted soa full widths. 14bolt and dana44
colorado, home of the insane