Cooper S Hardy Spicer or not??
Turbo Mini Forums

Does any one have a pot joint to hand that they can measure, with some calipers, the shaft end, the bit that fits into the box???....

I bought some Cooper S hardy Spicer outputs and flanges. They are the right outputs with the bolt and not the nut with an un stepped shaft. The flanges howerver do look right, but the outside diameter of the shaft is roughly 32mm. Is this right?? I thought the Cooper S output flanges were a bigger shaft diameter??? Did the later autos with Hardy Spicers have a reduced diameter?? Is 32mm the same as the pot joint?? Should I look for the bigger output flanges, maybe being that bit stronger??


So many questions, but i was under the impression that if you wanted to use Hardy Spicers in a rod change box, you needed the Special Tuning seal covers because of the bigger shaft diameter and detent ball spring, the standard pot joint covers were too small??

Pot joints are 1.250" or 31.75mm where they fit in the seal.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

i was always told the hardy spicers were bigger for sure, hence them being stronger.

I think there was some smaller diameter ones made for the auto box yes. I have the proper ones here, you will get proper ones if you buy for a LSD

BTW I am on the look for a hardy joint itself as one of mine is slopy, even with a new cross.

Edited by miniminor63 on 29th Jan, 2007.

the S type ar bigger on dia, you need a different side cover.

Edited by fastcarl on 29th Jan, 2007.

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Just been to measure mine and it's 1.375" as opposed to the 1.250 auto.
Regards
Dave

S and Auto are the same. The Auto went Pot in 73 didn't it?

If you look at a HS output shaft, there is a threaded section in the end. Pot outputs don't have this.

there are some strange hardy outputs around, its been up on the yank board too Vegard.

Just measured my spare pair and they too are 1.375, I do know these came from an auto box so Vegard you are totally correct.
So minisprocket I dont know what you have there if the diameter is 1.250.
But if you have suitable diff output shafts and end covers why not use them.
Regards
Dave
Regards
Dave