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fiveoformula
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Joined: 08 Aug 2007
Posts: 1799
Location: OR
1988 Pontiac Formula
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 Posted: Mon Nov 12, 2007 10:19 pm Post subject: question!! |
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'87 2.8/5spd berlinetta or RS... is it likely to have the 3.42 open rear end?
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Al Hasse
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Joined: 19 Nov 2005
Posts: 4379
Location: Bremerton, WA
1992 Chevrolet Camaro RS
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| Posted: Mon Nov 12, 2007 11:00 pm Post subject: |
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I think that is the standard rear end for the V6 T-5 cars. My 92 3.1 with T-5 has that same rear end.
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Quasi-Traction
"I have petals"
Joined: 24 Oct 2005
Posts: 3873
Location: stumptown
1986 Chevrolet Camaro Berlinetta
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| Posted: Mon Nov 12, 2007 11:31 pm Post subject: Re: question!! |
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| fiveoformula wrote: | | '87 2.8/5spd berlinetta or RS... is it likely to have the 3.42 open rear end? |
count on damn near anything that leaves the GM plant with a 60 degree V6 having a open 3.42 rear, unless the owner personally felt the need for a G80 option in the car.
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DBL_TKE
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Joined: 28 Feb 2007
Posts: 1505
Location: Aloha, OR
1991 Chevrolet Camaro Z/28
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| Posted: Mon Nov 12, 2007 11:37 pm Post subject: |
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Well you better be careful because I'm pretty sure they never made a Berlinetta in '87. I think they stopped producing them in '86. They did however make the Sport Coupe, LT, and RS (only in California though). That said, apparently all '87's with a 2.8 came with a 3.42 regardless of the transmission.
http://www.thirdgen.org/1987-chevy-camaro 
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Quasi-Traction
"I have petals"
Joined: 24 Oct 2005
Posts: 3873
Location: stumptown
1986 Chevrolet Camaro Berlinetta
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| Posted: Mon Nov 12, 2007 11:45 pm Post subject: |
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you're right DBL TKE,
86 was the last year for Berlinetta. 87 Had the type LT which was basically the same idea as the berlinetta. I don't know that you could order LT's with the Digital dash, though.
Don't know much about The Cali spesific cars.
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Xophertony
Rodeo Queen
Joined: 13 Oct 2005
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Location: Portland, Oregon.
1988 Pontiac GTA
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| Posted: Tue Nov 13, 2007 10:31 am Post subject: |
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with a 3.1 (so 90-92) and an auto you would get a 3.23:1
all MPFI 2.8s come with a 3.42:1. regardless of transmission
4bbl 2.8s depending on year could get a 3.08, 3.23 or 3.42 depending on transmission. at least according to TGOs tech data. |
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fiveoformula
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Joined: 08 Aug 2007
Posts: 1799
Location: OR
1988 Pontiac Formula
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| Posted: Tue Nov 13, 2007 4:15 pm Post subject: |
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i guess the one im looking at on craigslist would be an LT because it doesnt have the body kit like the z28 or the RS but id be looking to get it and swap rearends with my formula because it has lame 2.73's
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fiveoformula
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Joined: 08 Aug 2007
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Location: OR
1988 Pontiac Formula
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| Posted: Tue Nov 13, 2007 4:20 pm Post subject: |
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[quote="Al Hasse"]I think that is the standard rear end for the V6 T-5 cars. My 92 3.1 with T-5 has that same rear end.[/quote do you like how the gears are spread out with it? good low end? decent high end? 
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Al Hasse
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Location: Bremerton, WA
1992 Chevrolet Camaro RS
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| Posted: Tue Nov 13, 2007 6:40 pm Post subject: |
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| fiveoformula wrote: | | Al Hasse wrote: | | I think that is the standard rear end for the V6 T-5 cars. My 92 3.1 with T-5 has that same rear end. |
do you like how the gears are spread out with it? good low end? decent high end? |
Lacks low end torque, but that's the motor. I think the spread is decent. 70mph turns the motor at about 2500 in 5th where the 3.08 on the LO3 turns about 1800 at 70mph.
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fiveoformula
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Joined: 08 Aug 2007
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Location: OR
1988 Pontiac Formula
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| Posted: Tue Nov 13, 2007 8:38 pm Post subject: |
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| Al Hasse wrote: | | fiveoformula wrote: | | Al Hasse wrote: | | I think that is the standard rear end for the V6 T-5 cars. My 92 3.1 with T-5 has that same rear end. |
do you like how the gears are spread out with it? good low end? decent high end? |
Lacks low end torque, but that's the motor. I think the spread is decent. 70mph turns the motor at about 2500 in 5th where the 3.08 on the LO3 turns about 1800 at 70mph. |
and my LO3/700R/2.73 it'll go 70mph in second gear at 4700rpm (yellow line) just before shifting into "D" first goes to 47mph at the same rpm
if i could find one of those GU6 rear ends i think id like it alot better
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