bad diff
 

so how does your diff gears go out on a buggy that is only a month old? found a shim missing in the gears......

RE: bad diff
 

If you put it together then it could be shimmed wrong.

What buggy is it and what motor is in it?

Edit: Also what diff is it (front, center, rear) and was there diff oil in it?

RE: bad diff
 

if it is an RTR vesion it cane with grease instead of diff oil in the case. If you are a basher, this will contribute to an early death to the diffs... usually the center or rear first.

RE: bad diff
 

its a katana rtr .27, the center diff is the problem. i took it apart and grease in it and also 1 shim was missing. i drive the car hard so your probably right. should there be a shim for each gear? the book i have shows shims on all the gears. somebody over looked something at the factory.must of been made on a friday. so do u think some new gears and diff oil will do it?

RE: bad diff
 

Yep.