pbr disc brakes
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Joined: Jun 2006
Posts: 463
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From: Milford, OH
Car: 91 Z28 - using 87 electricals
Engine: 383 HSR EBL
Transmission: 700R4 - Stage 3 Fixed Pressure
Axle/Gears: GM 3.08 POSI
pbr disc brakes
can you run pbr disc brakes off a drum proportioning valve?
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Joined: Jan 2007
Posts: 149
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From: NewBrunswick, Canada
Car: 84 TA Black/ Gold
Engine: 383 With Vortec Heads
Transmission: 700 R4 Lvl2 Performabuilt 9.5 Vert
Axle/Gears: Moser 9" with 3.70
Re: pbr disc brakes
No you need to get a proportioning valve off a disc set up , for it to be set up properly. Some people have used the drum valve and used an optional adjustable valve to compensate. I bought my valve off of ebay for 6.08 including shipping . Just make sure to get one off same generation. With yours being a 89 I would say to go with 84 and newer to make sure you get the right metric bubble fittings on the valve.
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