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Discussion Starter #1
Does anyone know where i can buy the shims that center the differential in the housing over the inter net. The original on the right side was cracked. They are for a 12 bolt.

thanks in advance ,
m22
 

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I have some nice adjustable shims for the 12 bolt for $20 a set (enough for each side). They look like the ones pictured above.

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'69 RS/SS396 pro street
427/4spd/9"
Byars Performance
High Performance Drive Train Parts And Service
www.lubedealer.com/biggearhead
 

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Discussion Starter #6
How do the adjustable shims work (what is it that adjusts?) I broke the cast shim during installation. The reason i wanted to find something on the web is that i live in upstate N.Y.(20 minutes from border and i can't find anyone who deals with this). I actual would prefer someone to set the rear end for me but can't find anyone who will work on it.

m22
 

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The adjustable shims have 2 thick halves with thin shims between. You can add and remove the thin shims to make the whole thing thicker or thinner. I can e-mail a picture if you want more details.

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'69 RS/SS396 pro street
427/4spd/9"
Byars Performance
High Performance Drive Train Parts And Service
www.lubedealer.com/biggearhead
 

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Discussion Starter #8
Thanks to everone... I ended up ordering the adjustable shims from west coast differentials. How tight should i pack the shims in ?

thanks,
p.k.
 

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As tight as you can get them without shaving any mettal off when you tap them in. You shouldn't be able to pull the differential out by hand.

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'69 RS/SS396 pro street
427/4spd/9"
Byars Performance
High Performance Drive Train Parts And Service
www.lubedealer.com/biggearhead
 
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