With all of the changes in the appearance of the website, I'll be darned if I can figure out how to do a search anymore, so I'll just come out and ask the question. Has anyone removed the heater thermostat control unit and by-passed it with an aftermarket butterfly valve type of setup? My control leaks at the seal where it mounts to the firewall. I'm not seeing any leaking around the heater itself and I understand those thermostat control unit seals often go bad. Rather than repair the unit, I thought I'd take it out and bypass it with a butterfly valve type setup. Someone mentioned this to me today as an option. I'm curious as to whether others have done this and, if so, what all is involved. Thanks guys and gals.

1953 Chevy 3600 3/4-Ton