@mac, did you tried the hardened pinions from towers? (the ones that are meant for the choppers)

You running a 9 46 now with the 3.31 diff. final 16.941
If you go with a 4.3 diff.
you can accually run a 11 46 gearing. 17.98
You could accually step up to a 12 tooth for more speed.
Not only that but it accually takes some pressure off the center diff.

Yep, those are the Century Pinions...they are better than most...3-4 runs before they are not useable.

DM

That's bad. I expected a bit more from them. Did you tried the hardened from Mike? i thought he had some nitro pinions fit a 5mm shaft..

They are some nice pinions to run on the plastic spurs. I got a few rene. I didn't know they was supposed to be hardened.

Tried those first...

http://www.visionarycomputer.net/rc/...iniondeath.jpg

Wow this pinion is destroyed...
The plastic spur is absolutely indispensable

No, i meant the hardened ones with the pressed on pinion. (the pinion of which was actually a clutchbell)

This one....

That is exactly what the one I pictured above looked like when it was new...hard to believe ehh?

Damn... i have the same problem with my Xray XB8TQ, the Kyosho plastic spur dont fit in this differential, and the metal spur eat my pinion very fastly :(

See if a Kyosho diff will fit the Xray... most cars use the same size bearings I believe, so it's just a matter fitting between the mounts.

holy cow..

I guess you are better of with using the standard pinion then. it will be harder.

Glass..
I try the diff Kyosho in Xray mount, but the diff is too long for the mount, the Xray diff is more little and shorter than Kyosho :(

That's bad Viruss. i know what you mean.. this is still a problem.. time to introduce the slipperential with a buggy mounting option!