I purchased a set of rusty, crusty 4-speed brake & clutch pedals with the support bracket some time ago on Ebay. They will be used in my '71 Pro Touring car, and the support brace fits into the car perfectly. Included was THIS SWITCH and it is not operational. Does it look like one from a '69 Chevelle 4-speed? Or another GM A-body? A marking of "485" is stamped into the steel part, and "Delco Remy" on the black plastic part. Thanks for your help!