10-12 Bolt U-joint Issue Issue - Hot Rod Forum : Hotrodders Bulletin Board
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Old 08-08-2007, 01:55 PM
MrB MrB is offline
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10-12 Bolt U-joint Issue Issue

I recently swapped in a '68 model 12 bolt rear to replace the 10 bolt in my '67 El Camino. Everything works fine except I now have a bad vibration which I believe I've traced to the rear u-joint-yoke connection. The 10-bolt had locating tabs on the yoke for centering the joint and the 12-bolt doesn't.
I know a hybrid joint is available to solve this issue, but does anyone have experience along this line to point me to a supplier or give me a part number?
NAPA has an assortment a couple pages long and needs all kinds of measurements (in metric) to get the right piece...
OR.. will the 10-bolt yoke fit the 12-bolt? Thanks for any help...

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Old 08-08-2007, 05:25 PM
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You should be able to just give them the info for the vehicle now and the vehicle the rear end came out of and say ya need a crossover ujoint ... they in turn would look up both vehicles and see which vehicle takes what for a ujoint and then determine from there which crossover joint is needed......i assume one had internal clips and other had external clips on the u joint. Ohh almost forgot the yokes will not interchange.
I'm thinkin one of those uses a 369 ujoint and the other uses a 534g just going off of memory here so dont hold me to it......anyway if one is a 369 and other is a 534g you would need a 372 joint.
These are "precision" part numbers, most any part store could cross reference them.
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Old 09-28-2007, 05:30 PM
MrB MrB is offline
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After three trips to parts stores , the guy at the 2nd NAPA and I agreed we found the correct one. We settled on a ...... 372 .... Thanks for your help, HalfOunce!
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Old 09-29-2007, 08:17 AM
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Good deal.. Glad you got it going. Your welcome as well.. and Thank You for saying Thank You
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