i have an old (1979?) sears lt 8/36. it has this "varidrive" thing. its like a torque converter thing that it controled by a lever on the side of the tractor. i know the tractor was not made to plow snow but i put a plow on it anyway because i needed something. since i began plowing the drive belts tend to bind up if i dont give it enough throttle (running almost full). does any one think that a transaxle could be installed in place of the varidrive, trans, and chain driven axle. these parts seem to be under built. i have a metal shop to build parts if nessesary. any help or advise is welcomed. thanks in advance.