They are very important with the master cyl. under the floor. You want one on the front drums & one on the rear. This keeps a small amount of pressure on the wheel cyls. to keep from drawing in air on retraction. Front discs can use a 2 lb. valve.


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum