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#1
06-20-2007, 09:06 PM
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rear end
i want to change my rear end real soon...i have a 94 caprice with a 5.7L 350 and the rear end is a 7.5 inch with 2.73s....im thinking about switching to the 8.5 rear but i cannot decide what gears i want to put in... at the most i will go with 3.42s but what kind of rpms will i be looking at on the highway cruisin at 80 or so....lowest i would go is 3.08s....is there any gears i can put in either rear end between 3.08 and 3.42..should i definetly get an 8.5 inch rear or can the 7.5 handle 3.42s?? any help or suggestions are appreciated
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#2
06-20-2007, 10:39 PM
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Re: rear end
An 8.5" 3.08 w/rear disc brakes out of a '94-'96 9C1 is a bolt-in replacement, provided you get the driveshaft that goes with the donor car.
My '88 is running a '94 9C1 rear axle set. Works grrreeeeaaaaatttt!
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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
06-21-2007, 05:35 AM
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Re: rear end
Wouldn't a 94 already have an 8.5" rear? Especially if he has a LT1? And he'd should have 3.08s too with an LT1.
How have you verified your 7.5" and 2.73s?
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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
06-21-2007, 10:07 AM
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Re: rear end
car came with an 4.3L 265 L99 and i had a 350 put in it about a year ago....where can i find a 8.5 rear?
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#5
06-21-2007, 10:23 AM
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Re: rear end
Quote:
CD, the civilian LT1 cars typically come with 2.93 gears, but I do think you're right in that it should be an 8.5".
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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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#6
06-21-2007, 11:06 AM
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Re: rear end
Quote:
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