87 GTA Rear Brake issues...what to do?
Thread Starter
Joined: Jan 2001
Posts: 3,188
Likes: 59
From: Conroe, TX
Car: 1987 GTA
Engine: LS1
Transmission: 4L60e
87 GTA Rear Brake issues...what to do?
Here's the scoop:
The parking brake on my 87 GTA has been getting worse for years. We removed the rear wheels and took a look at the calipers, rotors, pads, etc. - They all looked great! Kindof odd for brakes that haven't been changed in a decade...
That being said, when we put the caliper back on the rotor, there was very little force required to push the pads apart far enough to fit on the rotor - so little that I think the caliper is locked up (which would explain why my parking brake doesn't work no matter how much it's adjusted).
So - what would you do if you were stuck with 87 Iron calipers on the rear of a 9 bolt? What's the most cost efficient route? Best performance? Middle ground? I'd love it if PBRs would swap easilly, as this car would be a great daily driver. But I'm open to bigger, more "fun" options - so long as the parking brake works and hopefully I can keep my GTA wheels.
The parking brake on my 87 GTA has been getting worse for years. We removed the rear wheels and took a look at the calipers, rotors, pads, etc. - They all looked great! Kindof odd for brakes that haven't been changed in a decade...
That being said, when we put the caliper back on the rotor, there was very little force required to push the pads apart far enough to fit on the rotor - so little that I think the caliper is locked up (which would explain why my parking brake doesn't work no matter how much it's adjusted).
So - what would you do if you were stuck with 87 Iron calipers on the rear of a 9 bolt? What's the most cost efficient route? Best performance? Middle ground? I'd love it if PBRs would swap easilly, as this car would be a great daily driver. But I'm open to bigger, more "fun" options - so long as the parking brake works and hopefully I can keep my GTA wheels.
Senior Member
Joined: Dec 2003
Posts: 690
Likes: 2
From: Minneapolis, MN
Car: 1989 Camaro RS
Engine: ZZ4 350
Transmission: T-5
Axle/Gears: BW 9-bolt w/3.73
Re: 87 GTA Rear Brake issues...what to do?
Swap to PBR's, I may have a complete set-up including brackets for you soon as I'm switching to a Moser 12-bolt with Bear PBR's this winter...
Thread Starter
Joined: Jan 2001
Posts: 3,188
Likes: 59
From: Conroe, TX
Car: 1987 GTA
Engine: LS1
Transmission: 4L60e
Re: 87 GTA Rear Brake issues...what to do?
So what is the install process for PBRs? New rotors, calipers, pads....and? I'll search just to see if this is a known topic, but any clues or a link would be great.
Senior Member
Joined: Dec 2003
Posts: 690
Likes: 2
From: Minneapolis, MN
Car: 1989 Camaro RS
Engine: ZZ4 350
Transmission: T-5
Axle/Gears: BW 9-bolt w/3.73
Re: 87 GTA Rear Brake issues...what to do?
To swap them you will have to remove the axles, have the bearings and retainers pressed off, swap the caliper brackets, press on new bearings, seals, and the retainers (may as well replace them while they are apart), re-install the axles, put on new rotors, calipers, hoses, parking brake cables, bleed the system, and adjust the parking brake tension... You're done!
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Joined: Mar 2001
Posts: 6,420
Likes: 5
From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Re: 87 GTA Rear Brake issues...what to do?
Senior Member
Joined: Dec 2003
Posts: 690
Likes: 2
From: Minneapolis, MN
Car: 1989 Camaro RS
Engine: ZZ4 350
Transmission: T-5
Axle/Gears: BW 9-bolt w/3.73
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Supreme Member
iTrader: (7)
Joined: Mar 2001
Posts: 6,420
Likes: 5
From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
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