I have an STX38 with a bad transmission when I put it into any forward gear it makes a rapid clunking sound from the transmission and wont move it catches everyone in a while and will inch forward but thats all,it goes in reverse fine. I have read several threads about problems with these trans axles is this a fairly easy problem to fix? Or I have a John Deere 180 that a kid cut the deck linkages off and spray painted it to make it a racing mower but never modified the drive train. Would I be better to swap that trans axle into the STX38 instead of repairing the one in it now or can that even be done? I think it wouldn't require any modification to anything since they are both 5 speeds with separate clutch and brake pedals.