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I'm replacing the u-joints in my 1981 4 speed (Super T10). I bought these from autozone https://www.autozone.com/powertrain/...985_15009_4227
They fit the differential side, but when I installed them into the transmission side they are way too short. Upon inspecting the ones that I removed, the transmission side one is 3 3/4 inch from cap end to cap end while the diff side one is 3 1/4.
Two questions.
Is that normal?
I managed to see the numbers 279 and A3 on the larger one, any idea where I can get one to fit?
The differential side sounds like it is a 1310 u-joint and the transmission end sounds like a 1330 u-joint.
1310 has width of 3.218" while the 1330 has width of 3.625".
Different u joint sizes?
