A new guy with an old question. 89 MJ 4.0 5spd 4WD My rear differential (Dana 35 3.07)lost a tooth on the ring gear. I removed the tooth gave it fresh juice and got another two months out of it.I have located many diffs(D35s) that won't work, one that would ($300), but it's trashed, gotten bids from $760 to $1200 to repair same and read enough postings to cause severe eye strain and dead butt syndrome (DBS). The other thing I've got is questions. 1) Is the D35 a P.O.S.? Why? 2) Is it worthwhile to try to do anything with it? 3) If not, which diff.(s) would be the best candidates to mount new spring perches and shock mounts on? (I,m not interested in changing ratios at the moment) The answers to these questions are probably in several places on this site, but I'd like to see the discussion all together, all at once.