Just wondering if they can be overhauled and if so where to obtain the rebuild parts? I more interested in doing a original GM one not the repop pictured below.

http://cgi.ebay.com/ebaymotors/67-68-69-GM-Proportioning-Valve-Camaro-Chevelle-GTO_W0QQcmdZViewItemQQhashZitem4cedafd45eQQitemZ33 0405237854QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAcce ssories

I have never sen part availbe for rebuilding them, they hardly ever go bad

Thanks Jay....The one in question was working fine a week or so ago, I will just clean it up and go with it, if their is nothing internally to play with.....Thanks...:thumbsup: