I am planning on putting ET streets on my car and running it. I have a 5spd and was wondering how long the old 9 bolt will last bofore it takes a dump. My main mods are in the post below. Thanks

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Black 89 IROC...Mods: 355, 10.5:1 comp, Big Solid Crower Cam, TFS heads, Victor Jr, Holley, and a 5 spd...12.90 @ 112.5 with a 2.3 60ft time on BFG radial TA's

 

There are several people running 11's with 9-bolts. Its a strong rear end.

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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

I have about 30 passes on borg warner 9 bolt with ET Drags (low 1.7x 60'). I have a 2400 converter and a 3.27 gear. I took the rear apart last week to install a 3.73 and everything inside still looks perfect. If the 3.73 still isn't enough, I am going to try a 4.11 next.

Miles

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88 427 Camaro
12.18 @ 113mph 1.75 60ft
Currently installing 3.73's into my 9 bolt (YES,it is a 9 bolt & YES they are 3.73's, not 3.70. 4.11's to follow soon )
www.koolmeister.com

 

Where did you get the 4.11's?

 

My 9-both Aussie went out the first night after the first rebuild, when I put 20-psi of power next to this LT1 camaro giving him 5 cars and the break. Yes I beat him and the rear made a funny noise.

Pete