WHEN ORIGINAL IS THE ONLY OPTION..... HERE IS AN ORIGINAL DISC BRAKE SETUP FOR A 1968-72 GM A-BODY CAR. THIS IS EVERYTHING NEEDED TO TURN YOUR SLOW DRUM BRAKE SETUP TO THE MUCH IMPROVED QUICKER TO STOP, EASIER TO WORK ON, DISC BRAKE SETUP. YOU GET THE (2) SPINDLES, CALIPERS, ROTORS, DUST SHIELDS, POWER BRAKE BOOSTER, MASTER SYLINDER, (4) METAL LINES, AND THE CORRECT PROPORTIONING VALVE. THIS WAS PULLED FROM A 1972 BUICK SKYLARK CUSTOM. ASKING $400 OBO FOR EVERYTHING. I CAN SHIP IN (3) BOXED FOR ABOUT $90 BUT MIGHT BE A BIT MORE OR A BIT LESS DEPENDING ON HOW FAR YOU ARE FROME ME HERE IN ALBUQUERQUE NM.
If you get no takers on the complete package, I would be interested in: Spindles, Dust shields, Metal lines and Proportioning Valve GLWS JIM/ROTT
Das...Where did you see the proportioning valve? I keep seeing photos of engines but never seem to see it. My 69 GS has one just below the booster. My guy said its expensive to rebuild. -Mike-
The one the seller has is pictured in the 4th pic. My 70 has it mounted to the frame rail near the transmission linkage. I am switching from drums to discs, so I will be swapping out the master cylinder and proportioning valve and will probably take the opportunity and move the proportioning valve away from the headers. I have roll control plumbed in as well to add to the flaring fun. You can get proportioning valve new from Inline Tube and I imagine Summit Racing, and possibly your local carparts store. No need to rebuild. I am no longer interested in these parts, I dropped coin on new spindles and have found the remainder of the parts I need. Jim
69 and 70 use the same proportioning valve as the drum brake cars and they have a hold off valve mounted on the power brake booster. In 71 the proportioning valve was replaced with a different valve for disc cars.
Some, not all 14 inch rims clear the 69 74 A/F/X disc brake setup. Early 14 in skinnies off a drum brake car will not clear.
