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#1
11-04-2007, 07:19 PM
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7.5 rear end swap?
Would a 7.5 10bolt from an Astro van bolt in my 89 Caprice? I'm just trying to figure out a rear end with coil spring and control arm set up with a lower gear ratio that could bolt in. I really don't need a 8.5 and there hard to find in salvage yards in my area (Cleveland OH) with a desirable gear ratio to make this worth doing. Looking for something in the 3.42 but rather a 3.73 ratio.
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#2
11-04-2007, 07:38 PM
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Re: 7.5 rear end swap?
Why not just change the gears, rather than swap out an entire rear axle assembly?
The answer to your question is no. The mounting locations are in different places, as well as not being the same width. You need to stick with B-body parts.
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1988 9C1 - Modified LM1 @ 275HP/350TQ - TH700R4 - 3.08 8.5" Disc Rear - see it at http://www.silicon212.org/9c1! 2005 Crown Vic P71 - former AZ DPS - 4.6 liters of pure creamy slothness! 1967 El Camino L79/M20 old school asphalt raper Remember - a government that is strong enough to give you everything you need, is also strong enough to take everything you have.
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#3
11-04-2007, 07:59 PM
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Re: 7.5 rear end swap?
In addition to all of that, the rear-end housing of an Astro van is offset to the right over an inch I think it is... The left axle is longer than then right.
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CD 1991 W41 #142 1989 Caprice 9C1 1997 C1500 1997 Bonnie SE 1998 Olds 98 LS Recently updated: http://forums.b-body.org
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#4
11-04-2007, 08:01 PM
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Re: 7.5 rear end swap?
Too scared lol. I've never set up a ring and pinion before. I've done some research on it and I don't know if I really want to tackle that job. I'm waiting back on a phone call from a descent backyard mechanic that has done this work before for cheap prices. Money is a huge issue, my 2 oldest play hockey and soon my 3rd will be following them. For anybody that knows from experience, it's an expensive sport!
 For some reason the Astro popped in my mine, figured I just throw that out there. I had a thread about swapping out the guts from an S-10 or another lower geared 7.5. I'm just tossing options around. Thanks for the reply.
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