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July 19th, 2008, 06:11 PM
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#1 (permalink) |
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Junior Member
Join Date: Jan 2008
Posts: 5
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Rear end question
Yes I tried to search but couldn't find anything...
I recently picked up an '86 Cutlass with a freshly rebuilt 305. if I take off easy it's fine, if I try to get on it to hard my rear end grinds. I'll be heading to the local Pull-a-Part next weekend to grab the diff. and a door. What rearends will bolt up? I'd like a better ratio if possible. Any G-body should work right? '78-'87? Anything else? Also what year doors match my '86? |
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July 20th, 2008, 08:09 AM
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#2 (permalink) | |
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Super Moderator
Join Date: Mar 2007
Location: Northern VA
Posts: 4,398
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Quote:
 Seriously, any 78-88 G-body axle is a bolt-in. No other axles fit without work. All but the 84 H/O and 85-87 442 and Buick GN will be the same weak-kneed 7.5" axle that was originally born under the Vega. If you do happen to find the 8.5" from the 442 or GN, you'd better also start buying lottery tickets because you have incredible luck.
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Joe Padavano 64 Jetstar 88 Conv 66 442 L-69 Conv 68 W-30 69 H/O 69 442 70 W-30 72 442 84 Custom Cruiser 86 Caprice wagon (w/307 Olds) |
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July 20th, 2008, 09:01 AM
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#3 (permalink) | |
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Junior Member
Join Date: Jan 2008
Posts: 5
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Quote:
That's about what I figured. What ratio's were available? How about the doors? I know the early models won't fit but what about '84,'85, and '87? |
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July 20th, 2008, 10:05 AM
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#4 (permalink) |
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Just the facts...
Join Date: May 2008
Location: THE GREAT WIDE-OPEN
Posts: 208
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'81-'88 are g-bodies, '78-'80 are a-bodies.
doors from '81-'88 buick regal and olds cutlass are what you're looking for. a 7.625 rear will hold up behind a plain 305, for a very long time. bill
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'67 CUTLASS 4-DR. W/425 & S.P. THM400 (NAMED "ERNIE") '83 H/O #1339(STILL IN PIECES) '85 PONTIAC FIERO SE V-6 4-SPD. BOUGHT NEW '92 CHEBBY DIS-ASTRO (GAS PIG) '97 GYRO METRO $HYTBOX  (41.42 MPG) 
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