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A Body KH Brake issues-need suggestions #1208711 04/02/12 10:55 PM 04/02/12 10:55 PM
Joined: Aug 2003 Posts: 279 NE Texas J JoeDragster OP enthusiast
JoeDragster OP enthusiast J Joined: Aug 2003 Posts: 279 NE Texas	I bought a 71 Demon, 318 car with 7 1/4 and drum brakes recently and without asking alot of questions, installed a set of front KH brakes. I did not change the master cylinder and prop brake. The brakes work but not very good and the pedal is very hard and the car does not stop wac. Besides the mistake of not changing the MC and Prop valve, is there any other issues i have created? What is the easiest way to change the prop valve ideas and suggestions welcome.

Re: A Body KH Brake issues-need suggestions [Re: JoeDragster] #1208712 04/02/12 10:57 PM 04/02/12 10:57 PM
Joined: Jan 2003 Posts: 75,004 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,004 U.S.S.A.	Drum brakes have a different master , you need to change both the master cylinder and the prop valve.

Re: A Body KH Brake issues-need suggestions [Re: JohnRR] #1208713 04/02/12 11:17 PM 04/02/12 11:17 PM
Joined: Jan 2003 Posts: 42,714 Spokane Washington ScottSmith_Harms Mr Wizzard
ScottSmith_Harms Mr Wizzard Joined: Jan 2003 Posts: 42,714 Spokane Washington	What John said, or add the M/C and an aftermarket adjustable proportioning valve.

Re: A Body KH Brake issues-need suggestions [Re: JoeDragster] #1208714 04/03/12 12:14 AM 04/03/12 12:14 AM
Joined: Aug 2003 Posts: 43,157 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,157 Bend,OR USA	Quote: I bought a 71 Demon, 318 car with 7 1/4 and drum brakes recently and without asking alot of questions, installed a set of front KH brakes. I did not change the master cylinder and prop brake. The brakes work but not very good and the pedal is very hard and the car does not stop wac. Besides the mistake of not changing the MC and Prop valve, is there any other issues i have created? What is the easiest way to change the prop valve ideas and suggestions welcome. No proporting valves on drum brake cars, only came on disc brake front with drum brake rear cars As already pointed out the disc brake cars neeed a disc brake M.C. with no residual valve on the disc brake reservior Your dragging the disc with the residual valve and you need the proper size master cylinder bore size Last edited by Cab_Burge; 04/03/12 12:17 AM. Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: A Body KH Brake issues-need suggestions [Re: Cab_Burge] #1208715 04/03/12 10:09 PM 04/03/12 10:09 PM
Joined: Aug 2003 Posts: 279 NE Texas J JoeDragster OP enthusiast
JoeDragster OP enthusiast J Joined: Aug 2003 Posts: 279 NE Texas	thanks for the reply, is there any tips for installing the disk brake Prop valve. I picked up one and it looks awful tight in there to get any wrenches to loosen the brake lines. any suggestions appreciated.

Re: A Body KH Brake issues-need suggestions [Re: ScottSmith_Harms] #1208716 04/03/12 10:12 PM 04/03/12 10:12 PM
Joined: Aug 2003 Posts: 279 NE Texas J JoeDragster OP enthusiast
JoeDragster OP enthusiast J Joined: Aug 2003 Posts: 279 NE Texas	thanks for the reply, i picked up a factory disk brake prop valve from a buddy of mine. how in the heck can you remove the old piece? it is full of stuff in the way

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