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Old 12-30-2019, 01:02 AM
fireprix fireprix is offline
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Join Date: Feb 2012
Location: Greenville, PA
Posts: 25
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Quote:
Originally Posted by hgerhardt View Post
There was a '10-bolt' with an 8-7/8" ring gear that was used on '73-'77 A-body wagons. Our '76 Buick A-body wagon had one.

Factory gears for that ranged from 2.56 to 3.23.
These did come in some GPS. My 75 has one from the factory. Aftermarket support is zero. Shame because they’re pretty strong. Mine has 31 spline axles but has C clips. Steepest gears are 3.42. There used to be a machine shop in Texas that made 3.55 gears for these to fit the most common 2.78-3.08 carrier. I upgraded mine from 2.56 open to 3.23 posi but searched for years to find good used gears and rebuilt carrier.