87 trans am 9 or 10 bolt?
09-08-2008, 09:35 PM
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Car: 1983 camaro z28 5.0 HO
Engine: built 350
Transmission: t-5
Axle/Gears: 9 bolt 4.10 posi with disc rears
87 trans am 9 or 10 bolt?
Hey guys, i've stumbled over a few questions of my own. i'm not the 3rd gen master by any means but i do know my fair share. one thing i'm just learning about in research and talk with others. i've always thought my 87 gta had a 3.23 pozi rear. disc. and a 10 bolt. but i've been hearing back and forth a few times about limited edition 9 bolt rear ends. before i start upgrading my rear end i definately need to learn a few more things. so if you would. does anyone really know much about the 9 bolts? and how do i tell if mine is either or? Thanks guys, i know my questions will be answered.
09-08-2008, 09:46 PM
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Car: 1983 camaro z28 5.0 HO
Engine: built 350
Transmission: t-5
Axle/Gears: 9 bolt 4.10 posi with disc rears
Re: 87 trans am 9 or 10 bolt?
ok thanks.
09-08-2008, 10:00 PM
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Car: 1983 camaro z28 5.0 HO
Engine: built 350
Transmission: t-5
Axle/Gears: 9 bolt 4.10 posi with disc rears
Re: 87 trans am 9 or 10 bolt?
i would assume it would be possible for me as well. it was originally a 350 tpi with a 700r4. you have any idea on the specs for a stock 9 bolt?
09-08-2008, 10:05 PM
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Car: 1983 camaro z28 5.0 HO
Engine: built 350
Transmission: t-5
Axle/Gears: 9 bolt 4.10 posi with disc rears
Re: 87 trans am 9 or 10 bolt?
thanks, i love learning more about these things.
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09-08-2008, 10:08 PM
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Re: 87 trans am 9 or 10 bolt?
09-08-2008, 10:12 PM
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Car: 1983 camaro z28 5.0 HO
Engine: built 350
Transmission: t-5
Axle/Gears: 9 bolt 4.10 posi with disc rears
Re: 87 trans am 9 or 10 bolt?
you happen to know any other ways of figuring out which rear i have?
09-08-2008, 10:32 PM
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Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: 87 trans am 9 or 10 bolt?
#1...ALL GTAs came stock with 9-bolts stock....no ifs, ands or buts about it. The 9-bolt was part of the GTA package.
#2...Look at the center rear end cover..Count the bolt heads. 9=9-bolt, 10=10 bolt
Really...It's that simple. Also, even faster, but no guarantee a 10-bolt hasn't had its cover modified...A fill plug. 9-bolts have them, 10-bolts don't.
#2...Look at the center rear end cover..Count the bolt heads. 9=9-bolt, 10=10 bolt
Really...It's that simple. Also, even faster, but no guarantee a 10-bolt hasn't had its cover modified...A fill plug. 9-bolts have them, 10-bolts don't.
Last edited by Stephen; 09-08-2008 at 10:50 PM.
09-08-2008, 11:03 PM
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Car: 1983 camaro z28 5.0 HO
Engine: built 350
Transmission: t-5
Axle/Gears: 9 bolt 4.10 posi with disc rears
Re: 87 trans am 9 or 10 bolt?
ah ha. so mine is definately a 9 bolt then. now the mission is to just find a good gear set up. i've been looking for anything bigger than the 3.27 but the biggest i wanna go is a 3.73
09-08-2008, 11:06 PM
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Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: 87 trans am 9 or 10 bolt?
http://9bolt.com/ No personal experience with them, I just know of them.
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