Quote:
Originally Posted by RCParts411
I had the exact same issue and symptoms with my Kyosho St-RR at the track last Sunday. I did however have to replace the gears. Even the second set of gears started to grind a little. When I took it apart I noticed 1 of my shims was not seated correctly.
From what I was told shimming is key. My front diff has 2 shims on each side. I moved 1 shim over to create a tighter mesh with the ring/pinion. I've only tested on the street after adjusting the shims but the sound disappears even under the heaviest of braking.
You'll probably just want to go ahead and replace you ring & pinion. Once its stripped out a little theres nothing you can do.
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Wow, I always thought that the ring and pinion for st-rr is the strongest among the buggy diffs since it is made of chrome moly steel. From what I have read, this steel is extremely hard.
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