Originally posted by TylerT/AZ28
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Correct, I believe the 3rd gen rear is 2" narrower than 4th gen. Thus requiring spacers for 3rd gens to run 4th gen rims, and 4th gens not able to run 3rd gen rims
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Ok I just typed out a long post but then the site crashed, here's the condensed version:
Find a rear end out of a thirdgen that has POSI. Look for one out of a IROC, Z28 or even some of the v6 cars came with POSI. Most will have a 3.23 gear some will have a 3.42 gear. If you can find one with a 3.42 gear I say swap it out and see how you like it. I have a 350 with a 5 speed, POSI rear with 3.73 gears in it, I love it. 1st gear is short but I can live with that and the highway RPM's arent that bad. I personally think 4.10's in my setup would be too steep and that I couldnt deal with the RPM's on the highway (I drive my car a lot).
Second option is to make your open diff rear a POSI rear. Although this means more work and even more money you still can do it and you can put whatever gear you want in it. I still think your best option is finding a POSI thirdgen rear and swapping them out.sigpic
1992 Chevy Camaro 25th Anniversary-SOLD
1992 Chevy Camaro 25th Anniversary
1997 Chevrolet Corvette
The Original
Originally posted by meissenI actually agree with Darren on everything he said...Originally posted by 81DaytonaPaceCarYep, pretty much...not too often I agree 100% with Darren, but there it is...
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Post Whore
- November 8th, 2009
- 3000
- Tyler Porter
- 85 Z28, 91 Trans am
- Clinton Township Michigan
- student
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check the rpo codes if its original o the car. otherwise sometimes the diff cover says or else you have to jack up the rear and find out manually. i have a set of 3.08s with posi on my z28 and im not sure whats on my 92 but im willing to let them both go if your interested91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
00 Tahoe Z71........Stock
97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater
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3.08 Rear didnt come with POSI to my knowledge. Check the RPO codes or there are some simple ways to check while the rear is out of the car as well.sigpic
1992 Chevy Camaro 25th Anniversary-SOLD
1992 Chevy Camaro 25th Anniversary
1997 Chevrolet Corvette
The Original
Originally posted by meissenI actually agree with Darren on everything he said...Originally posted by 81DaytonaPaceCarYep, pretty much...not too often I agree 100% with Darren, but there it is...
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Post Whore
- November 8th, 2009
- 3000
- Tyler Porter
- 85 Z28, 91 Trans am
- Clinton Township Michigan
- student
- Send PM
my rpos told me 3.08 with posi. burnouts always showed me it was posi too. maybe my dad upgraded it91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
00 Tahoe Z71........Stock
97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater
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Interior Whore
- January 21st, 2008
- 6380
- fred
- 1996 Camaro z28
- U.P. and over you.
- united states coast guard
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Post Whore
- November 8th, 2009
- 3000
- Tyler Porter
- 85 Z28, 91 Trans am
- Clinton Township Michigan
- student
- Send PM
GU4 and G80. fred unfortunately if i mash the gas the car would flood itself lmao91 Trans am, 305, Lt1 cam, 24lb injectors, headers, SLP LM2, SW chassis, massive panhard, lowered, modded TPI, Tuned, 4.10s, Lincoln locked
85 Z28 406/th400?/3.42 4th gen disc rear/4th gen dash
00 Tahoe Z71........Stock
97 K1500 lt4 cam, 1.6s, MPFI, Solid axled, IROKs,------winter beater
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sigpic
1992 Chevy Camaro 25th Anniversary-SOLD
1992 Chevy Camaro 25th Anniversary
1997 Chevrolet Corvette
The Original
Originally posted by meissenI actually agree with Darren on everything he said...Originally posted by 81DaytonaPaceCarYep, pretty much...not too often I agree 100% with Darren, but there it is...
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your car...(my old car) has rear disk brakes, posi as far as I remember, as far as ratio I never did run the RPO code, it did well on the freeway so it couldnt have been really high'91 Camaro Modded, LSx, House of Kolor Intense White, lowered, GS chrome 18" wheels, 14" Brembo CTS-V on all 4 corners, LS rear end, FP suspension components
" When in doubt...throttle out ! "
ENVYsion Entertainment Group
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