OK- - - -progress! Slow but steady. I got the RF (pass side) brake apart this evening, and found just about what I expected. Both wheel cylinders are stuck tight, with the pistons corroded to the casting. The rest of the brake system looks OK, plenty of lining left, good springs, a smooth drum surface, and good wheel bearings. The cylinders got a bath in KROIL and a little massage with a Propane torch, and they'll soak overnight and all day tomorrow while I do an inspection in Chattanooga. I'll dismantle the driver's side tomorrow evening.
Good news- - - -it appears that one wheel cylinder casting number will work on top and bottom, and most likely it will fit the other side as well.
Wagner-Lockheed casting # FE-3073 fits top and bottom of the passenger's side, and the bleeder screw will work in both threaded holes. That's a really good indicator it will also interchange to the other side of the front axle! If I can't get the pistons free, or the cylinders are too pitted to rebuild, we only have to search for one wheel cylinder for all four positions! The brakes are a very big version of the same style setup used on 1940's and 50's Chrysler product cars, and some Ford truck applications. It has one single-piston wheel cylinder for each brake shoe, and a steel pipe behind the backing plate to connect the two to a single flex line. There's a bleeder screw on both wheel cylinders.
Jerry
