some rear ends do not have the pumkin in the center. one axle is shorter than the other. if you found four rear ends you would have four short axles. then shorten the howsing to fit. I used to work at a place that would cut athe axles and weld the splined end back on. they welded them in a lathe. mabee just use one rear end and chain drive the other axle. or the first bobcats had three wheels and a swather drive.