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-   -   Combo valve for rear disc 3rd gen? (https://www.thirdgen.org/forums/brakes/686102-combo-valve-rear-disc.html)

Hello, Michael 08-02-2013 06:05 PM
Combo valve for rear disc 3rd gen?
 
"Did GM use the same combo valves for front disc/rear drum cars and 4 wheel disc cars? Is that why my rear brakes barely do anything? I've heard of changing the plugs to alter the front and rear bias? Also, I've heard that combo valves are for cars with rear drums. Should 4 wheel disc cars just have a prop valve instead of a combo valve? Sorry, I never knew too much about brakes."

JamesC 08-03-2013 08:36 PM
Re: Combo valve for rear disc 3rd gen?
 
Originally Posted by Hello, Michael (Post 5611813)
"Did GM use the same combo valves for front disc/rear drum cars and 4 wheel disc cars? Is that why my rear brakes barely do anything? I've heard of changing the plugs to alter the front and rear bias? Also, I've heard that combo valves are for cars with rear drums. Should 4 wheel disc cars just have a prop valve instead of a combo valve? Sorry, I never knew too much about brakes."
All thirdgens have a combination valve (of which proportioning is a part). The valves are different for drum and disc cars. For best braking performance, use the correct valve. Check the 10-Bolt FAQ for more info.

JamesC

Cosmik Debris 08-04-2013 05:38 PM
Re: Combo valve for rear disc 3rd gen?
 
Sometimes the rear brakes do not work correctly because the pads require adjusting, this is done with the hand brake.


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