Author Topic: 75 Trans Am - Rear Axle Code PT  (Read 125 times)

Pontiac Dreamer

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75 Trans Am - Rear Axle Code PT
« on: April 15, 2019, 12:22:20 PM »
Needing a bit of help figuring out my rear axle on my Trans Am I just bought.  Axle Code is PT, which looks to be a 2.56 Posi unit.  However, there is a silver tag attached to one of the diff cover bolts that says to to use limited slip oil only. Without opening up the rear end, how do I know for sure?

Thanks!
Rob

hakitup

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Re: 75 Trans Am - Rear Axle Code PT
« Reply #1 on: April 15, 2019, 04:24:58 PM »
Not sure what the issue is, posi and limited slip are the same thing. It’s more likely a safe-T-track Pontiacs name for limited slip.

Tom H
"I don't know what you call it, I only know the sound it makes when it lies!!"

Pontiac Dreamer

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Re: 75 Trans Am - Rear Axle Code PT
« Reply #2 on: April 15, 2019, 04:50:37 PM »
Not sure what the issue is, posi and limited slip are the same thing. It’s more likely a safe-T-track Pontiacs name for limited slip.

Tom H

Thanks - I should refrain from asking questions on a Monday. For reason I had it in my head that they weren't the same thing. When I re-read my question just now, I just called myself a dumb-ass.   Thanks for the response though!!

Rob

hakitup

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Re: 75 Trans Am - Rear Axle Code PT
« Reply #3 on: April 15, 2019, 05:44:02 PM »
No problem, I’m a ford guy and it always confuses me that they use codes on the housing and then put a tag when they could have put all the info on the tag.

Tom H
"I don't know what you call it, I only know the sound it makes when it lies!!"

Re: 75 Trans Am - Rear Axle Code PT
« Reply #3 on: April 15, 2019, 05:44:02 PM »
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