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4 speed mainshaft

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Senyah

08-13-2001 20:03:15




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Hi. I usually only read almost every post, but I now have a problem that is puzzling to me. I am restoring a 1956 640 Ford. I rebuilt everything including the transmission because 2nd and 4th counter and mainshaft gears were broken( teeth stripped). This was a tractor I salvaged from a field were I found it rusting. My question concerns the end play on the mainshaft. After puttting in all new gears, There was much to much end play. I removed the shims on the output side but it still has way too much endplay. I did the same to the countershaft and it was reduced to about .010 which is not new specs but "feels" good. (I still rebuild an occasional Muncie). My bearings on the mainshaft look good, feel good and appear to be satisfactory. My question to Zane or anyone else with an opinion concerns the bearings. Do you think new bearings would reduce endplay to an acceptable level? If not Is it ok to shim the bearings on the input or output shaft similar to a Muncie 4 speed car tranny? All thoughts and comments are very welcome and useful.
Senyah, Al.

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Rich8N

08-14-2001 18:06:26




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 Re: 4 speed mainshaft in reply to Senyah, 08-13-2001 20:03:15  
It sounds like you know when it "feels" good.
That being said, my personal opinion is it better to be a little loose, than too tight, bearing
damage will occur if too tight but with only .010
it should be just fine and last indefinitely.
IMO
Rich8N



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