Afraid to ask, but, rear discs...
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Joined: Apr 2010
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Afraid to ask, but, rear discs...
Okay, so I don't have it YET, but I'm eventually going to be getting an '86 TA roller, with the intention of swapping out the 10-bolt to a Moser 12-bolt with Wilwood rear discs with p-brakes.
My question is, if I get a master cylinder out of a TA for four-wheel disc, do I still need a proportioning valve? I know I'd need one if swapping from rear drum to disc, but - as I understand it - that's due to the master cylinder itself. However, I ALSO read that the rear drum MC is apparently a GM-recommended install if you don't like the harder pedal feel from the four-wheel disc MC.
So, in this case, would buying the four-wheel disc MC by itself be sufficient, or would I still need a proportioning valve?
My question is, if I get a master cylinder out of a TA for four-wheel disc, do I still need a proportioning valve? I know I'd need one if swapping from rear drum to disc, but - as I understand it - that's due to the master cylinder itself. However, I ALSO read that the rear drum MC is apparently a GM-recommended install if you don't like the harder pedal feel from the four-wheel disc MC.
So, in this case, would buying the four-wheel disc MC by itself be sufficient, or would I still need a proportioning valve?
Joined: Aug 1999
Posts: 19,282
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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
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