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Rear end gear?
https://slantsix.org/forum/viewtopic.php?t=59936
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Author:  wjajr [ Tue Jul 26, 2016 7:10 am ]
Post subject: 

GTS 225:
Quote:
And just where did you get that info?
8.75 rears from an A-body are 5-on-4" pattern, and B-body rears are 5-on-4.5" pattern.
Rick:
Quote:
You could also look for a 8 1/4 out of a later A body and that would be a bolt in. Of course you need to shorten the driveline. You may want to get a plan together for doing the big bolt disc brake swap up front. It is a huge upgrade safety wise and then the 8.8 or an 8 1/4" would have the 4.5" bolt circle to match the front

Author:  sandy in BC [ Tue Jul 26, 2016 7:56 am ]
Post subject: 

I made a mistake

A body 8 3/4 are 5x4

Author:  Rick Covalt [ Wed Jul 27, 2016 3:20 pm ]
Post subject: 

You may want to do a little research and check into a B body 8 3/4" rear if you want an 8 3/4. They are usually quite a bit less than an A-body one and with the right offset wheels should work fine.Plus you get bigger brakes and 4.5" bolt pattern

I also have a friend who installed a 8.8 out of a Mustang in an A-body, with the right offset wheels. He didn't have to cut any axles or anything.Just moved the spring perches. Plus if it is out of a GT it should already have the posi in it.

Just some more options.

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