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Canadian Poncho Homepage -> Canadian Poncho -> 65-70 Full Size Chassis Tech Forum -> So Mark, how is that 12 Bolt Posi Going ?
Post Info TOPIC: So Mark, how is that 12 Bolt Posi Going ?
ABC123


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So Mark, how is that 12 Bolt Posi Going ?
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I have a couple of options for my 12 bolt.

002a.jpg

003a.jpg

And I am not one of those options wink

I think it should be torn apart by someone who is very experienced at these.

I curious of how your 12 bolt rebuild plan is going Mark and what I should consider.

Anyone's thoughts are appreciated !



-- Edited by ABC123 on Saturday 28th of January 2023 06:55:13 PM

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4SPEED427


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I wouldn't give it a second thought, honestly.



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
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cdnpont


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4SPEED427 wrote:

I wouldn't give it a second thought, honestly.

 Meaning rebuild it? Or run it?

 

If the backlash isn't too high, and the pinion seal is still good, no metal bits sitting in the housing, outside of an axle inspection with new seals bearings, new oil*. I might just clean it up and run it.

*(And of course, unless you are 100% focused on having two black stripes the same length...)

But then again, this is a full on resto, so maybe a complete?

 



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4SPEED427


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Run it. As you say, if you open it up and if it all looks good, if the axles look good, put in new axle seals, new oil and cover gasket and off you go.



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
LT1Caddy


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Ditto.... They are bullet proof. Don't listen to the naysayers

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cdnpont


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They are tough. The axles, not so much on the bearing surfaces.

At a minimum, new axle seals. That common leak at the tube to housing or spotweld, when it's cleaned up before paint, apply some sealer to those areas.



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cdnpont


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Oh, and I haven't done anything with it yet Randy. The spring.



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