With thanks to Jim Wilson, I found a perfect fitting dual master cylinder for my 58 Plymouth-a 69 Roadrunner master cylinder. I bought mine at a local parts store and it fits nicely-even clears the booster above it and has a "flat" lid with a nut to remove-much like my old one. I am still in the midst of plumbing it. I'll let you all know how it goes. Believe me, one incident of brake failure and you don't have a problem sacrificing originality for having the risk of smashing your car all to heck. Todd |