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Old 01-06-2026, 02:44 PM
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steve25 steve25 is offline
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You have a 65 thru 70 big car rear as long as you’re not talking about a 66 Grand Prix.

Axles from any other 10 bolt rear will not work.

These rears when they had Posi where one piece cases.

Gear ratios were from 2.29 to 4.33.

In terms of using the same case and other gears your limited to 2.29 to 2.56.
2.93 to 3.23, or 3.42 to 4.33.

I am not 100% sure but I think your best hope is to find another big car 65 thru 70 rear with the gears you want in it, a Posi would be a plus, but here again II think they are not rebuildable.

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