Cen diff upgrade

[Finnster]

Originally Posted by Gee

The one nice thing about the cen ring and pinion is your shim job doesn't have to be perfect. You can get away with a little play vs the XL stockers. Any play left in the stock setup and there goes another 13 dollars for a 13t pinion. I finaly threw away all the broken ones I had lined up like dead solders. I've been running the cen ring and pinion on the XL alum cup and gears. http://www.rc-monster.com/forum/showthread.php?t=21219
The only problem so far was my screws backing out of the cup and breaking off. I need to get a new cup, I've been using a plastic diff cup from one of my rcs so I could get my Savage fix. A little more time to let the loc-tite set probably would have helped. Sound like the new HPI cup are a reasonable price and nothing to mod either.

How close was the fit? They seemed just a bit off when I modded mine, but don't recall exactly. If I could put the hpi R&P on the Cen diff I would (assuming I break mine anytime soon)

[Gee]

Originally Posted by Finnster

How close was the fit?

Which part?

The holes needed to be oblonged (is that a word?) out so the screw would sit flush but once that was done the screws went in straight. The ring gear is real tight on the cup I ran the dremel and a grinding stone around the XL cup a couple times so it was easier to install. They fit into the bulkhead without any modificiation.