Thread: '65-'66 Rear Axle Interchange Question
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Old 12-10-2013, 06:44 PM
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Heybuck Heybuck is offline
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Originally Posted by LASJayhawk View Post
FWIW: the pinion seal shows a different part number for the 65 and the 66 to 70. I've never compared the seals to see if there is a machining difference in the carriers or not...
That's interesting. I pulled the 3.23 open rear out of my '66 GP and installed a 2.56 POSI out of a '65GP.

The pinion seal started to leak some time later and my diff guy was having difficulty getting a seal. I would assume he was looking for a '66 seal and I never told him it was a '65 diff. He eventually solved the problem but its something to keep in mind for the future.

Thanks

Ian

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