PLUG IN B-PILLAR LOWER THIS IS THE PLUG AT THE BOTTOM OF THE WHEEL ARCH AT B STYLE AND IS MEANT TO SEAL THE HOLE WHEN YOU HAVE TREATED THE CAVITIES. SIMPLY INSERT THE PLUG AND STRIKE THROUGH WITH A HAMMER. 4 NEEDED PER BUS 1968-1991
PLUG IN B-PILLAR, LOWER BUS 1968-1991...