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 - The Cletrac General GG and the BF Avery A - A Bit of History - by Mike Ballash. This article is a summary of what I have gathered up from various sources on the Gletrac General GG and the B. F. Avery model A tractors. I am quite sure that most of it is accurate. The General GG was made by the Cleveland Tractor Company (Cletrac) of Cleveland, Ohio. Originally the company was called the Cleveland Motor Plow Company which began in 1912, then the Cleveland Tractor Company (1917) and finally Cletrac.
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