yep.
i guess the new hardened gears are hpi no 86922.

greets
rhyls

Ring gear is hardened and the carbide bits cost more than I want to spend. I don't need/use carbide bits in the gunsmithing I do (competitve rifles mostly), the metal I work is not that hard. If I had carbide tooling, I would've have tried it already - I know of a few from Sav Central who've done it and it seems to fix the prob.

This thread is has got some great ideas in it. I wonder why HPI doesn't make the ring gear and case use the biggerbearings in the first place.

because the material is hardened it can happen that the thin collar (1mm thick) snaps right off. It would be VERY easy for Jamie at Fastlane to adjust the bearingholes on the savage diffs so it would fit larger bearings. I'll discuss this with him.

Now, there's one heck of an idea!!!

I took the nitro savage out racing on the weekend and you know what happened? The bloody diff bearings have gone already in the rear diff (stock savage diffs). I broke a rear dog bone snapped a LST shock shaft and have blown the rear diff bearings :diablo:. Who said nitro motors don't have enough power? I only put new bearings on those diffs just before Christmas and they have seen less then 4L of fuel. The bearings are definitely the biggest problem with the savage diffs.