Conversation Between elven wizard and bytesize1992

Hello I have been told you are the one to speak to about schumacher cars just seeing if you can help I recently bought a schumacher xtr 3e and am having problems when I bought it it only worked in first gear so I bought new gears installed as instructed all worked great for 10 mins after that I lost all drive to rear wheels I stripped the diff to find the belt had been chewed up as the car was old I put it to a perished belt so I replaced the Belt with a spare I was given with the car but the same think happened again so I bought a belt from racing-car website cleaned the whole diff rebuilt with new bearings an regrases an cleaned inside the rear pully installed new Belt all felt an ran brilliant for 30 mins for it to lose drive so I stripped it again to find the new belt had chewed up again I have since ordered a new belt but need help with why this would be happening it is the tt diff if that helps looking forward to hearing from you thank you for your time to read this sam brown