just thought i would chime in here... i have a 62 1/2 ton that i am restoring, and i have been trying to figure out this delemma for some time now.i'm starting to lean toward fabbing my own bracket for the booster,needs to be far enough away from the firewall to put the clutch master behind it in or near the stock location.Adam ,sounds like someone put a trans and bellhousing from a later model in your 61 and "made it fit"