Hey guys,
I also built 2 new diffs for yesterdays club race. I doubled the standard shims on each side. Rear diff felt a little tighter but they ran fine all day.
Qualified 2nd and won the 30min A final by 3 laps.
I pulled apart the diff I blew 2 weeks ago and it had snapped the main crown gear where the pin sits. I did have a big accident with my car during that meeting so I think that may have contributed.
Yesterday I had no accidents at all and diffs ran fine all day.