An M670 wheatland would definitely be a better tractor. Your "U" tractor has a hand clutch. A foot clutch is better for loader work, because your hands have enough to do operating the loader. A loader is tough on a front axle, so the M670 wheatland (standard) front axle would be tougher. The 670 wheatland is a little more scarce. Also the M670 would have improved hydraulics and capacity. Email me with any more questions.