When I got this sad puppy, I went thru everything, changed to a set of tony's hex head alloy steel screws. New brgs everywhere, UE trans idlers and TI centers, trx wheelie bar and set of revo wheel and tires. Upgraded strg servo and new evx speedo. I shimmed the diffs and was close to replacing them, but wanted to get it up and running so stock ones went back in with fresh brgs. I have a set of UE 6 spyders in GA 7075 bulks ready to go if needed but hoping to use it on a nitro.

Diffs have been solid so far, but you're right eventually, one or the other will strip. Once 3.3 cvds are installed and that flex in the driveline is gone, diffs are the next weak link.