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#1
06-10-2008, 06:30 PM
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Rear end question???
Hello all,
I have a rear end starting to get noisy, I just had the oil changed and they said they checked the level, it was a little low, but now much the guy said. SO... If I change out the read end is there any better then the other... besides the 9c1 (8.5 I think it is) Anyways if I go wrecking yard hunting, I may as well look for a change now if I am going to. What about gearing, the stock I think is 3.08, is there a better option that came in another car/year? 
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#2
06-10-2008, 08:36 PM
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Re: Read end question???
3.08 is probably the best compromise between tire-smoking torque and $4.25/gal gasoline usage. You might be able to go with a 3.42 but in my experience, it didn't add a lot of 'oomph' to the car, certainly not enough to justify the increased fuel usage (went from 19/gal highway to 16/gal highway). You haven't told us what you are driving, so I can't help you as to what you have.
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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
06-10-2008, 09:31 PM
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Re: Read end question???
Your 91 should have 3.42s I believe. Take a look at your SPID and look for a code there like GU4 or something similar.
Let's figure out what you have now before swapping something out.
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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
06-11-2008, 11:42 AM
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Re: Rear end question???
Speaking of rear ends and gas prices, That 2.73 reary in my car that I wanted to get rid of for so long... It's never looked better to me right now.
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#5
06-11-2008, 12:08 PM
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Re: Rear end question???
Sorry I have the 91 Caprice, I will check the code in a few minutes...
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 1991 Caprice Classic
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#6
06-11-2008, 08:20 PM
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Re: Rear end question???
I did find a GU4 code, amongst many others. lol But there is a GU4. That likely mean 3.42?? That's not bad, maybe i will see about having the rear end fixed then...
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1991 Caprice Classic
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#7
06-11-2008, 08:45 PM
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Re: Rear end question???
Gu4 = 3.08
Gu5 = 3.23 Gu6 = 3.42
__________________
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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