setting up a used ring and pinion can be and is a ral pain in the drain due to differences in machining of the castings , And getting it dead on only happens about 1 in 10,000 times . You may have a high or low drive and a dead on coast pattern or the other way around . Study the OLD pattern and stop and think of what ya need to do to get the pinion set as close as you can to the org. ware pattern and this will take some playen since you do not have the set up tools that were used to get the pinion depth set to start . And with years of shell we say extencive field testing you have ware on all parts . Then here you come and oh these bearings are getting bad so i will just replace the bearing and i will reset backlash well when you did this you changed everything . and you can NOT go by the book here this is where experience comes into play with setting up a rear end . I(F the book calls for .008-.012 backlash that is for a new gear set on new bearings, so you put new bearings on everything but not a new gear set then you should be happy with .016-.025 back lash . better loose then nice and tight .008-.012 as now you pressed the ring gear deeper into the pinion and the tips will be riding on a new surface and only the tips are making tight contact . Be more concerned with a good drive patter or close then a perfect set on both coast and drive Also just because you have the org. shims this does not guaranty a perfect set due to machining of the housings, that is WHY they make shims..
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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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