Bobbie, I did about the same thing with a 79 (I think) with the wacky diagonal split drums. I did locate a nornal MS72 in it's standard location. I tossed the car around in the wet with low fuel and adjusted till I had no rear lockup. I showed the customer how to adjust it himself and sent him on his way. The last time we talked he had adjusted his rear shoes so brakes were working but no need to mess with valve.
Thanks for the fair deal Brian, That's the last part for a completely fresh brake system. Payment goes out today. If I can help you in any way just ask.
Dave, thanks for the side step. I think it's important that the guys and gals here play fair and respect each other.
Spank I just recieved the metro brakes you passed on so I can complete a car. If you need three GBs in 6 inch e mail me and we can work something out. In three years I have not stumbled on a 4th. so they must not be high on my list.