Reply to "Leakage in brake booster from Hall pantera"

I installed a Wilwood set-up from Pantera Performance. When installing the booster that came with it, one of the mounting studs snapped off. That's when I found out that the mounting bolt pattern on a Pantera is unusual. The booster had to be replaced with a another new one because they are specially modified to fit a Pantera. You may find that a replacement booster is going to be hard to find. Also, I assume that it is an upgrade item specified for your brake kit. You need to look for a local company that rebuilds brake boosters. They will be familiar with disassembling the housing. The housing is held together by pressed tabs, rather than bolts or screws. Not something you should mess with because if you crack them or get the alignment wrong, you're going to ruin the whole thing.
I'm with PanteraDoug on contacting Hall about the problem. New components should come with a warranty. You may have to ship it back, or they may have an idea how to, or where to fix it. In any case, you should go to them first. When I had trouble, my dealer got right on it and helped me get it done.
Mooso