My 69 Impala has cruise control that doesn't work because the vacuum valve actuated by brake pedal leaks. I have been unsuccessful in locating a replacement either new or used. Does anyone out there have a line on where I could get a new one? I bought a new one for a 1990's Chevrolet, but it would not fit in the available space. The one I need is vacuum only and does not have an electrical switch for brake lights. I would think most any GM car with cruise control before they went to the digital type at least up into the mid 1970's or beyond should work. The junk yards around here don't have that much from that vintage. Any ideas?

Harv