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Drum to disc questions

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Old Feb 8, 2010 | 12:21 PM
  #1  
Alpha2-1's Avatar
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From: Detroit area, Michigan.
Drum to disc questions

Car in question is a 1986 IROC-Z with rear drums.

Are the existing Master Cylinder/Booster the same/compatible to a disc/disc car?

What years are ideal for scavenging?

As for tracking down a proportional valve, are there any identifying part numbers or features on the block to look for? There are a couple cars in a local yard that might have the right part, but the rear ends are gone already.
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Old Feb 10, 2010 | 07:07 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: Drum to disc questions

Originally Posted by Alpha2-1
Car in question is a 1986 IROC-Z with rear drums.

Are the existing Master Cylinder/Booster the same/compatible to a disc/disc car?

What years are ideal for scavenging?

As for tracking down a proportional valve, are there any identifying part numbers or features on the block to look for? There are a couple cars in a local yard that might have the right part, but the rear ends are gone already.
Many of your questions will be answered in the following link:

https://www.thirdgen.org/forums/tran...-10-bolts.html

If the rear is gone, check for RPO J65, the RPO for 4-wheel disc brakes.

JamesC

Last edited by JamesC; Feb 10, 2010 at 07:24 AM.
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Old Feb 10, 2010 | 08:39 AM
  #3  
Alpha2-1's Avatar
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Re: Drum to disc questions

Actually they weren't. But the RPO code helps. Thanks.
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