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quick brake help rear disk aluminum

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Old Sep 7, 2013 | 09:39 PM
  #1  
mreld3r's Avatar
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From: NE Texas
Car: 1986 Iroc, 89RS
Engine: 350 tpi, 350 tbi
Transmission: 700r4,700r4
Axle/Gears: 4.10,2.73
quick brake help rear disk aluminum

While I was at the pick-n-pull; I found a '92 camaro with aluminum disks on the rear. Quick check of the RPO found that the car was originally disk/drum.
I recognized the brakes as PBR; so I removed them. Pulled the rear cover and found 3.42 posi and something that appeared to be a bicycle sprocket thing. Electrical connector on top of the third member. LT1 swap,,correct??
There are NO emergency brake cables installed at all.
Question: The left side of the caliper (only) has some sort of (large metal thing, and a heavy duty spring on what appears to be part of the parking brake assy...some sort of damper??)
Is the passenger-side supposed to have the spring/damper assy; also?
I will return monday to remove the complete third member for "my" car.
If the spring/damper assy. is missing from the right side, where could I purchase one..
Does anyone have a diagram/parts breakdown of this brake assy; so I know what parts i need and how they go together?
Thank you
mike
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Old Sep 8, 2013 | 12:42 AM
  #2  
JamesC's Avatar
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From: Lawrence, KS
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: quick brake help rear disk aluminum

The dampers aren't necessary (many 89-92 cars weren't equipped with them from the factory). I'd ditch them altogether.

JamesC
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Old Sep 8, 2013 | 06:55 AM
  #3  
JamesC's Avatar
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Joined: Aug 1999
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From: Lawrence, KS
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: quick brake help rear disk aluminum

I neglected to mention that the spring is part of the parking brake. Pics in the following link:

https://www.thirdgen.org/forums/faq-...iscs-89-a.html

IIRC, the springs and cables can be found below:

http://www.flynbye.com/

JamesC
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Old Sep 8, 2013 | 07:24 AM
  #4  
mreld3r's Avatar
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From: NE Texas
Car: 1986 Iroc, 89RS
Engine: 350 tpi, 350 tbi
Transmission: 700r4,700r4
Axle/Gears: 4.10,2.73
Re: quick brake help rear disk aluminum

So; I am missing parts.
Here is what I have.
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Old Sep 8, 2013 | 07:32 AM
  #5  
mreld3r's Avatar
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From: NE Texas
Car: 1986 Iroc, 89RS
Engine: 350 tpi, 350 tbi
Transmission: 700r4,700r4
Axle/Gears: 4.10,2.73
Re: quick brake help rear disk aluminum

It appears that I am missing a spring, a bracket, and a ton of dirt removal.
This would also explain why the right rear rotor was completely shot.
Without that spring/bracket the parking brake was dragging on the rotor.
Thank you very much james
Sincerely
mike

Last edited by mreld3r; Sep 8, 2013 at 07:35 AM.
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