My neighbor bought 89 cheetah touring. bearing on drive shaft blew. shaft moved and the result is broken chain, broken chain case cover, burnt out sproket. I was told I would have to remove the whole rear suspension to center the shaft on a new bearing. How difficult is this to do for a novice. It seems that in the currrent state, the track is putting too much pressure on the shaft. it won't budge. is there any way to replace the bearing without removing the rear suspenson?