Re: Help identifying a 3spd transmission

Posted by HH56 On 2023/11/15 15:07:41

An extra breather is OK as long as it is not in a location where a spinning gear can thrown oil up and out but just FYI, on most of the transmissions you should be able to seal the top plate all around using a gasket or RTV. Not sure about the big 30s Super and Twelve transmissions but on all the regular cars thru 54, case venting was done via a longitudinally drilled bolt with a protective crimped on dust cap being used at the right rear bolt location. I doubt the added plate or other changes to the case to accommodate the torque tube would have affected the normal venting.

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