Couple of U-joint questions. Are hipo u-joints and regular V-8 u-joints the same? Specifically, I am concerned with the rear u-joint. Do most parts houses (Advance, Autozone, etc.) carry the correct u-joint?
U-joints
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I was told by my drive shaft guy that Spicer has filed for bankruptcy and he is unable to get the correct U bolts for an early Mustang new. He is also having trouble getting a lot of other parts, but under normal conditions, he can build a drive shaft just like the factory ones with correct U joints. The main difference is that most of the new ones have zerk fittings on them. Very difficult to see once installed. You may can find one without the fitting, but I wouldn't recommend it.
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The rear u-joint is not the same as the front one. The cups that go into the 9" rear end are 1/16" larger in diameter than the ones pressed into the driveshaft. I got mine from NAPA several years ago. I have the boxes and part nos. and can take a look tonight.
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The actual Ford NOS part number is C5DZ 4635A
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Quote from cchesley
The main difference is that most of the new ones have zerk fittings on them. Very difficult to see once installed. .....
Just depends how much effort one wishes to invest in seeing them
The other tell-tell sign is that the original have a "valley" or depression in the center of the U-joint. Many of the replacements have a channel in this area to carry the grease to the cups from the zert fitting or are completely solid in this area for strenght
"rebuilt" original car bring $100-up ea
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Hey Joe,
Sorry for the delay. I've got the U-joint part nos. for you. The NAPA part nos. are:
Front: 369
Rear: 430
They are both outer clip style. When you install them, the zerk fitting should be in a state of compression, such that as the driveshaft rotates, it turns towards the fitting.
Good Luck,
Gerald
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