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#1
04-17-2007, 01:23 AM
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rear end question
recently swapped out my 4.3L L99 V8 in my 94 caprice classic with a Lt1 350. i want to change the rear end....should i try and find a rear to swap in or just get a ring and pinion set for my rear end, and what size gears should i get...i was thinking 3.73s or 4.11s, found a kit for both of those...kit is 250 bucks...rear end in it now is a 7.5 inch with 2.73s... would i face any computer problems? any help would be appreciated
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#2
04-17-2007, 07:52 AM
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Re: rear end question
It might be better to try to find an 8½" rear end with the gearing you want. A small rear is not as likely to survive as well as a larger axle under a heavier car.
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#3
04-17-2007, 11:35 AM
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Re: rear end question
If you go and get an 8.5" axle, you will need to get the driveshaft out of the donor car as well - the driveshaft needs to be 1" shorter.
__________________
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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#4
04-17-2007, 03:14 PM
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Re: rear end question
this may help you out: http://www.9c1.com/technical/engineapps.htm
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#5
04-17-2007, 03:16 PM
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Re: rear end question
and a drive shaft link for you: http://www.9c1.com/technical/info/driveshaft.htm
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#6
04-18-2007, 01:43 AM
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Re: rear end question
so should i go with 3.73s in the 8.5 rear or bigger...and where can i find a 8.5 inch rear?
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#7
04-18-2007, 02:07 AM
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Re: rear end question
Quote:
The junkyards will be a great place to start.
__________________
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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#8
04-18-2007, 02:27 AM
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Re: rear end question
3.42 is a good compromise ratio between fuel mileage and acceleration with a LT1 in the B-cars.
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