How to build it?

[Sneeck]

Don't want a to tight bearing fit though. You'll know why when you disassemble the diff for maintanance/ new oil.

It's true that UE has a tight arm fit. I had to trim some racer x arm's to smooth it out. But remember, UE built their arm's around the stock bulk's, I run ga's. It only take's 0.1 mm to cause possible problem's.

I rather trim something down than add material.....