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SSGN · 10-06-2013, 08:06 AM

Only the Buick Turbo Cars and Olds 442 came with the 8.5 inch. Monte SS and all others were 7.5. They are cheaper than a 12 bolt . I have seen non posi assembly's go for $500 or less. G80 is the posi code . Lyn go on here and look around, good bunch of guys

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Kevin

10-06-2013, 08:06 AM	#7
SSGN Senior Member Join Date: Feb 2006 Posts: 644 Likes: 131 Liked 140 Times in 51 Posts	Re: 8.5 rear end for 1980 G body GM Only the Buick Turbo Cars and Olds 442 came with the 8.5 inch. Monte SS and all others were 7.5. They are cheaper than a 12 bolt . I have seen non posi assembly's go for $500 or less. G80 is the posi code . Lyn go on here and look around, good bunch of guys http://www.turbobuick.com/forums/ Kevin Last edited by SSGN; 10-06-2013 at 08:08 AM.