Mine is leaking out the back side down the brake booster housing and needs to be replaced and I was going to replace the Master assembly as well but am having a hell of a time finding replacement parts for these. Searching the interwebs for the below part#'s come back with all kinds of stuff and the one that are exact part number cost over $1,000.00. Any help sourcing replacements would be highly appreciated.
Car 1991 R32 Gtr
Part# found on Master Vac assembly JKC 05U01 Part# found on Nengun 47210-05U01
Part# found on Master brake Cylinder 05U00 Part# found on Nengun 46010-05U00