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Need 9 bolt backing plates

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Old Dec 5, 2010 | 07:38 PM
  #1  
Z28IROC's Avatar
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From: Buckeye, AZ
Car: 1988 IROC
Engine: 350CI
Transmission: 700R4
Axle/Gears: 9 bolt 3:70
Need 9 bolt backing plates

Does anybody out there have a set of backing plates for a 9 bolt diff with disc brakes? I need a set to put the rear end back under my car. Please let me know if you know where I can get some.
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Old Dec 5, 2010 | 08:58 PM
  #2  
fireturd350's Avatar
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From: New Boston, IL, USA
Car: '90 Formula 350
Engine: 383 SBC
Transmission: ProBuilt S/S 700-R4 & ACT 9" Stall
Axle/Gears: 10 bolt 3.23
Re: Need 9 bolt backing plates

I think these are the stock sizes... http://flynbye.com/catalog/i31.html

Ed also carries them for larger brake conversions too.

You could try your local GM but I doubt they have them.

I don't know about other places, but be prepared to explain to people that you didn't miscount and it's actually a 9 bolt not a 10 bolt. I had Summit Racing Tech try to sell me a 10 bolt ring and pinion for about 20 minutes repeatedly telling me I must have miscounted the bolts on the pumpkin.
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Old Dec 14, 2010 | 04:32 PM
  #3  
TheScaryOne's Avatar
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From: Tucson, Arizona
Car: 1987 IROC-Z Camaro
Engine: L98 5.7L TPI
Transmission: 700-R4
Axle/Gears: 3.27 BW
Re: Need 9 bolt backing plates

Iron or Aluminum calipers? I have a set for the aluminum I plan on installing on my car, so I will have a set of iron available soon. I'd get rid of the whole iron brake setup if you come get it. Let me know so I know if I need to rush on the aluminums.
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Old Dec 14, 2010 | 07:28 PM
  #4  
Z28IROC's Avatar
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Junior Member
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Joined: Jul 2003
Posts: 75
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From: Buckeye, AZ
Car: 1988 IROC
Engine: 350CI
Transmission: 700R4
Axle/Gears: 9 bolt 3:70
Re: Need 9 bolt backing plates

Yes, I need it for the iron calipers. It is not a rush.
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Old Dec 15, 2010 | 09:42 AM
  #5  
mr305's Avatar
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From: PHX
Car: 91' RS
Engine: 310 C.I.D. + n2o
Transmission: T-5
Axle/Gears: built 10 bolt 3.73's
Re: Need 9 bolt backing plates

i think you counted the bolts wrong.....ha ha just playing i got some if you need them i live in the area of 75th ave and mcdowell pm me if you want them
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Old Dec 17, 2010 | 04:43 PM
  #6  
Z28IROC's Avatar
Thread Starter
Junior Member
20 Year Member
 
Joined: Jul 2003
Posts: 75
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From: Buckeye, AZ
Car: 1988 IROC
Engine: 350CI
Transmission: 700R4
Axle/Gears: 9 bolt 3:70
Re: Need 9 bolt backing plates

PM sent.
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Old Dec 18, 2010 | 07:21 PM
  #7  
91 1LE's Avatar
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Posts: 341
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From: Litchfield Park
Car: '91 1LE
Engine: 377 w/Stealthram
Transmission: T56
Axle/Gears: 3.42 Torsen
Re: Need 9 bolt backing plates

Baer Brakes on Thomas sells them too.
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Old Jan 7, 2011 | 08:52 PM
  #8  
Z28IROC's Avatar
Thread Starter
Junior Member
20 Year Member
 
Joined: Jul 2003
Posts: 75
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From: Buckeye, AZ
Car: 1988 IROC
Engine: 350CI
Transmission: 700R4
Axle/Gears: 9 bolt 3:70
Re: Need 9 bolt backing plates

Thanks everybody, I got some from mr305.
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