Ok so about a month ago I put a new aftermarket (China, what else)gearbox in my mates mower. A couple of weeks ago he brought it back because it needed new rear drive wheels, he didn't think it needed them when I put the gearbox in. So I put a new set of wheels on it and he has now brought it back again saying it wouldn't drive. I put it up on the bench and I saw that both rear wheels had been split in the hubs. I ordered a new set of wheels and put them on only to discover that all 3 drive gears have been stripped. Some people know how to abuse machines, and I having a hard time trying to convince him that it is not the fact the parts are made in China. Some people never learn and I'm not going to waste my time fixing it for him to smash it again. I have done that with his motor bikes for years, but not any more.