1970 gto rear axle fit a in a 1967 lemans?? - Pontiac GTO Forum
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Old 07-25-2010, 08:07 PM   #1 (permalink)
 
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1970 gto rear axle fit a in a 1967 lemans??

will a 1970 gto rear axle fit in a 1967 lemans both a 10 bolt axle
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Old 07-25-2010, 08:18 PM   #2 (permalink)
 
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The 70 rear is 5/8" wider per side than the 66/7. I found a 66 rear for my 70 and it sucked the tires right up in the wheelwell, go the other way and tires are in the fenders.
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Old 08-03-2010, 07:26 PM   #3 (permalink)
 
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would the axle in my 67 lemans be considered a 8.2" gm axle? the tag on it is long gone
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Old 08-03-2010, 07:43 PM   #4 (permalink)
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Originally Posted by bnichols04 View Post
would the axle in my 67 lemans be considered a 8.2" gm axle? the tag on it is long gone
If the diff cover is the same as the one pictured it is a BOP 8.2"

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Old 08-03-2010, 07:47 PM   #5 (permalink)
 
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was that the only option in 67 with a 326? could i tell by the vin or anything?
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Old 08-03-2010, 09:53 PM   #6 (permalink)
 
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no need for tags. just look at the shape of the cover. particularly the "dips" on each side.
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Old 08-03-2010, 10:40 PM   #7 (permalink)
 
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where can i get a lower ring and pinion ratio? all i can find is 3:55 and higher I just want to rebuild my stock unit but the gears are worn out causing a bang. not sure if i should but a used axle or rebuild mine?? cost plays a big factor here. i am using this to just cruze nothing crazy
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Old 08-03-2010, 11:12 PM   #8 (permalink)
 
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If you can find a highway gear single spin rear for a 66, it shouldn't cost but a couple hundred bucks, just a take out item. To replace the bearings in yours, I don't know, $500? Maybe less, may not be the gears. To rebuild your rear, new gears and Posi is about $1500. You can convert to a 66/7 Chevelle 12 bolt with a conversion U-joint, gain all the plusses of a 12 bolt, but keep the narrow-ness? of the early rear, that is bang for the buck your best bet.
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Old 08-04-2010, 11:34 AM   #9 (permalink)
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Randy's ring and pinion will sell you a posi carrier for any gear ratio you want. I ordered an Auburn unit, 3:55 gear set and an installation kit, works great.
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Old 08-04-2010, 12:07 PM   #10 (permalink)
 
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I'm pulling the rear end off my 66 which is a 2.56 ratio right now and replacing it. Its not originally off a GTO but fit perfect, no tire rub. I will be selling it so if your interested let me know, shipping would be the only pain.
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