my master is leaking internally, and it's getting time to replace. is there a master off a 4wheel disc truck that swaps in and provides more power? i've got 4wheel discs. i'm also probably going to trash my RWABS. also, while i'm in there, i might look into hydroboost if it isn't too pricey. anybody got part numbers or prices for boosters/masters? or if you know of any very informative threads, post em up.