10 Bolt Posi Help - Pontiac GTO Forum
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post #1 of 7 (permalink) Old 08-28-2016, 04:23 PM Thread Starter
 
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10 Bolt Posi Help

I'm sitting in my garage, frustrated. I have a GM 10 bolt with posi Trac rear diff I'm trying to install in my 69 custom s. The problem is in pulling the axles. I can't get to the c clips because of the posi Trac unit. I'm not certain how to pull it out or if I should. I can't get to the c clips. Can anyone please help me and point me in the right direction. I'm not certain what type of posi Trac unit this is. Thank you so much.
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post #2 of 7 (permalink) Old 08-28-2016, 04:56 PM
 
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I'm sitting in my garage, frustrated. I have a GM 10 bolt with posi Trac rear diff I'm trying to install in my 69 custom s. The problem is in pulling the axles. I can't get to the c clips because of the posi Trac unit. I'm not certain how to pull it out or if I should. I can't get to the c clips. Can anyone please help me and point me in the right direction. I'm not certain what type of posi Trac unit this is. Thank you so much.
Pinion Head is the expert on rear ends. Send him a PM with your question. If it is a Pontiac 10-bolt, no C-clips, the axle bearings are pressed on and the end plate with its 4 bolts holds the bearing in place as well as the tight fit into the axle tube. Just gotta use some muscle sometimes to yank them free. I secure the rear end, install a drum backwards, finger tighten the 5 lugs, then use the drum like a slide hammer and keep at it - but that's my redneck way of doing it.

If it is a Chevy 10-bolt, it has C-clips.
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post #3 of 7 (permalink) Old 08-28-2016, 05:32 PM Thread Starter
 
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Thanks,
It's a chevy 10 bolt with C Clips. Someone installed a Spartan Posi Locker in it. It's going to be beatch to get the C Clips out. But, I understand what it is now and how it goes together. Just have to reverse engineer the dam thing....
Thanks for your help!
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post #4 of 7 (permalink) Old 08-28-2016, 05:43 PM
 
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Thanks,
It's a chevy 10 bolt with C Clips. Someone installed a Spartan Posi Locker in it. It's going to be beatch to get the C Clips out. But, I understand what it is now and how it goes together. Just have to reverse engineer the dam thing....
Thanks for your help!
OK, cool. No one ever said working on these old cars was easy........or even fun. I see it as you gotta do what you gotta do to keep it running 'cause I like the car.
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post #5 of 7 (permalink) Old 08-28-2016, 10:53 PM Thread Starter
 
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When I get frustrated, I go over and open the hood on my BMW 330ci. And, there's so much plastic and odd things staring back at me that it reminds me why I'm going to dump it as soon as I get my Custom S rolling right. Cause, I, Can, Work, On, It
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post #6 of 7 (permalink) Old 08-29-2016, 08:05 AM
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Just from the size and shape of the unit, it looks like you may have a Spartan locker. Here's a video on how to install one, I assume that you can remove it by reversing the steps.


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post #7 of 7 (permalink) Old 08-30-2016, 08:19 AM Thread Starter
 
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Thanks Bear,
I tracked it down to an "Aussie Locker". I'm going to remove the springs which should allow me to access the C Clips.
It'll be interesting running a locker. I have one in a 1959 Afla Veloce race car. Hopefully, there's no comparison.
When funds allow, I'll probably change it out. I'm looking at building the suspension in a canyon carver (tired of sports cars...).
Tjs
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Undercarriage, Frame, Transmission and Differential Discussions.

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