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Old 03-01-2021, 03:19 PM   #11
David J
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Join Date: Jun 2010
Location: St Croix Falls WI
Posts: 2,080
Default Re: Transmission Oil

YES !!!!
If the grease is going forward it probably means your driveshaft seal is working .
If it is not the grease usually goes into the torque tube .

On cars the spec for filling the u-joint cavity is 4 oz .

I just use SAE 140 GL4 in the u-joint , tranny , steering gear and rear end . Works fine if your d-shaft seal is good and the gaskets are installed well .
1933 and 1934 cars .

Many seem to think packing the u-joint cavity full of grease is the way to go . The excess is either going in the tranny or rear end .

Quote:
Originally Posted by 1939 Tonner View Post
A big thanks to all of you!!!
I'll get some NAPA SL-24238 140W GL-4.

Something I noticed when I drained the transmission, it seemed to be filled well past the fill hole, and it seemed to be mixed with the corn head grease that I put in the torque tube. Is it possible for the corn head grease to get into the transmission? if so does that mean I'm overfilling the torque tube?
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