[bigred5765]

seen this before 90% of the time its caused buy people bashing running for more than 10 Min's and doing donut's or lots of wheels spins everywhere,donut's kill diffs heat builds up and it simply melts the plastic parts then the diff will never work properly no matter how you rebuild them,we have raced ares on a 5.5 turn motor diff tight slipper set so it slips for a second or so from a standing start and done 10-15 Min's practice no bother, but less than a minuet doing donut's and diff is dead