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Old 08-04-2011, 08:53 PM   #7
DaveM
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Join Date: May 2005
Location: Massachusetts
Posts: 172
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I have a 78 caddy rear end in my 81 deville.. It is a posi and had 2.28 gears... I put in the lowest gears that fit that carrier without a spacer, that is 2.56 ratio..Its been quite a few years , but if I remember right I got the gears from Geno's { gears or rears , I don't remember} and I think he was in NY.. And I should have tried the 2.28's before I changed it....The switch pitch does make a big difference...
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