To put it bluntly, they still tore up final drives, just not as readily. IH put in the original upgrade of bull gears, bull pinion, differential, diff bearings, bull pinion ball bearings etc at a no cost to customer basis however, the bower flat roller bearing on pinion shaft, inside axle and bull pinion and better out side axle bearing was a customer option offered at a very reasonable price at a later date. I put in ten update pkgs in 4 and 560's and many of the bearing packages later on. I also put a 560 up date of bull gears etc in a 450. That was in the days when these tractors did the work, now days they don't give problems around here. My advice , let it slip a little, tires are still cheaper than gears, look at them as your slip clutch.
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Today's Featured Article - Field Modifications (Sins of the Farmer) - by Staff. Picture a new Chevrolet driving down the street without it's grill, right fender and trunk lid. Imagine a crude hole made in the hood to accommodate a new taller air cleaner, the fender wells cut away to make way for larger tires, and half of a sliding glass door used to replace the windshield. Top that off with an old set of '36 Ford headlight shells bolted to the hood. Pretty unlikely for a car... but for a tractor, this is pretty normal. It seems that more often than not they a
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