Transmissions and Drivetrain Need help with your trans? Problems with your axle?

4th gen rearend difference

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Old 05-01-2011, 08:14 PM
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Car: 91 Camaro Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.42 Posi Disc
4th gen rearend difference

I have a 4th gen reared that has rear disc, 3.43 gear ratio and posi. that is going into my third gen. My question is how do I find out what year 4th gen it came out of 93 -97 or 98-2002? I have the calipers and rotors. I also have the number stamped on the axle tube. Have read and searched trying to find a way to id but am having no luck.

Thanks for helping
kyrenegade
Old 05-02-2011, 06:51 AM
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Re: 4th gen rearend difference

98 up has the style of parking brake that looks like little drum brakes inside the rotor.

97 back the parking brake uses the disc caliper, like thirdgen ones all do.
Old 05-02-2011, 06:56 AM
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Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: 4th gen rearend difference

Double Post.

JamesC

Last edited by JamesC; 05-02-2011 at 07:05 AM.
Old 05-02-2011, 07:05 AM
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: 4th gen rearend difference

Here's the 89-97 version:

http://webhosting.web.com/imagelib/s...disc%20upgrade

Here's the 98+

http://webhosting.web.com/imagelib/s...nversion%20kit

JamesC
Old 05-02-2011, 03:16 PM
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Join Date: Feb 2002
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Car: 91 Camaro Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.42 Posi Disc
Re: 4th gen rearend difference

Thanks for the feedback! And the pictures of the differences. This is a great help to identify what I have! Going to the garage now......

Thanks!
Kure evade
Old 05-02-2011, 03:27 PM
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Join Date: Feb 2002
Location: Lexington, Ky
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Car: 91 Camaro Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.42 Posi Disc
Re: 4th gen rearend difference

It's a 89-97 PBR 11.6" rear end! Now to find a good upgrade from Ed Miller! thanks!
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