[Graboon]

1991 Cherokee 4.0L - the front drive won't engage when I shift into 4Hi anymore.

I took it to a dealer last year (to diag the problem) and they disassembled it, said they needed a part that would take a while to get, then re-assembled and sent me on my way. On the way home, I tested the 4WD and it WORKED! It kept working for a few weeks but then stopped working again.

Any ideas?