MASTER CYLINDER PROPORTIONING VALVEProportioning Valve-CHROME! ** ONLY 1 IN STOCK! **NEW CHROME REPRODUCTION (original was brass body). CORRECT FUNCTION FOR 78-82.WILL ALSO FIT 74-77, BUT WILL REQUIRE AN ADAPTER PLUG FOR YOUR BRAKE LIGHT SWITCH. If you need the adapter plug, please let us know ($5 charge) MakeCHEV ModelCORVETTE Year1974-1982 Item#BRK362R Instructions / Core Return FormClick Here Price$89.95EACH Core Charge$0.00 QtyAdd