Originally Posted by
Thelittlesthobo
[...]
100,000k oil in diff. Calling it oil is pretty generous. I would say more a goop or a gel. Sheesh. Even though the seals etc are bedded in I take it the diff will still need a little running in before it settles down or is it good to go (Race meet on sunday).
Run in your diff (say in a drill/lathe) with some light oil (or WD40) if you're using metal gears (I don't know what gear diffs you guys use), then drain, clean, refill with oil of choice.
Corally make a syrup that is like that and some people really like it for a nearly spool-locked diff.
Granpa, personally I find age and irritation immunity are directly proportional.