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Rear Calipers 87 IROC

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Old May 29, 2010 | 08:56 PM
  #1  
Gary's Avatar
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From: Nepean, Ontario Canada
Rear Calipers 87 IROC

I am having the same problem with my rear disc brakes as everyone else is experiencing. I am thinking of changing the rear calipers, but, cannot get a straight answer from part stores on-line. Some say there is a left and right rear, others say there is only one rear caliper and can be installed on either side. Can somebody shed some light on this for me?

Thanks,

Gary
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Old May 29, 2010 | 11:27 PM
  #2  
Al Hasse's Avatar
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Joined: Jun 2005
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From: Bremerton, WA
Car: 1992 RS / 1989 RS
Engine: 3.1L MFI / Vortec 383 TBI
Transmission: T5 / LS-T56
Axle/Gears: 3.42 open / 3.73 Eaton posi
Re: Rear Calipers 87 IROC

If you have the cast iron calipers, which 87 probably does, then you have a single part number for both sides. One mounts leading the axle and the other mounts trailing the axle. Some 89 and newer cars would have the aluminum calipers that are right/left specific.
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Old May 30, 2010 | 12:50 AM
  #3  
norcalz28's Avatar
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From: Troup, Texas
Car: 1989 Camaro IROC-Z
Engine: ZZZ# 0607 of 1200 produced
Transmission: Pro-Built 700R4/Vig.2400
Axle/Gears: 3.27 BW 9 Bolt PBR Disc
Re: Rear Calipers 87 IROC

Best bet would be to get some LT1 rear calipers, as they are the same basic caliper that came on the 89+ cars, save for minor cosmetic differences. Then you would need to get the backing plates for your rearend, whether it be a 9 bolt or a 10 bolt. The new brakes will be trailing where, as mentioned before, you have one in front and one behind. I actually have a pair of freshly rebuilt PBR rears, the stock brakes off my 89 IROC, if you're interested. The red paint faded dramatically after only a few hundred miles, but they would clean up very nicely, and they work perfectly

Will
Attached Thumbnails Rear Calipers 87 IROC-brakes2.jpg   Rear Calipers 87 IROC-dscn4277.jpg  
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Old Jun 9, 2021 | 11:33 AM
  #4  
87iroz-c's Avatar
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Joined: Dec 2020
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From: Horsham PA
Car: 87 Iroc-z
Engine: 350 carburetor
Transmission: 5spd
Axle/Gears: 3.42
Re: Rear Calipers 87 IROC

Originally Posted by norcalz28
Best bet would be to get some LT1 rear calipers, as they are the same basic caliper that came on the 89+ cars, save for minor cosmetic differences. Then you would need to get the backing plates for your rearend, whether it be a 9 bolt or a 10 bolt. The new brakes will be trailing where, as mentioned before, you have one in front and one behind. I actually have a pair of freshly rebuilt PBR rears, the stock brakes off my 89 IROC, if you're interested. The red paint faded dramatically after only a few hundred miles, but they would clean up very nicely, and they work perfectly

Will
How much?

Ha nevermind. This post is 10 years old haha
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