....also I had a problem with my brakes after rebuild/replace all the way around.....realized later I had to replace vacuum check valve and rubber gasket on brake booster and some vacuum lines including the one to the vacuum ball on my driver side fender......there was also a 3 way check valve that just fell apart when I touched to remove the lines...........
https://www.summitracing.com/parts/r...RoCV3QQAvD_BwE
https://www.summitracing.com/parts/rnb-80189?rrec=true