Being a straight bevel gear makes setting up this fit much easier. The service manual for the H emphasizes two things: backlash and alignment at the back (wide) edges of the tooth contact area. There are paragraphs about "heel" and "toe" but not being hypoid, you can't really do a lot about it. When putting my '51 H back together, a shim was taken from under the right side and put under the left side cage to bring down the backlash. Since the ring gear was moved perpendicular to the pinion gear, contact points weren't affected at either edge of the teeth. If you decide to measure the backlash, be sure to take all of the slack out of the differential carrier assembly to the right because load forces will always press in that direction.
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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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