Thanks everyone for your help. I can't believe that the PBR pads need a shim and it is not included with them. Yal, if you find that extra set of shims I will take you up on your offer. I can send you money for your trouble.
Will the shims really cure the problem?
I will try them but if they don't I guess I am going to change the PBR's out and chalk it up as a learning experience. I guess I should have searched here first.
1969 RS/SS Camaro Conv. L-89 Alum. Head 396 375HP 4-spd
1987 GNX #419, 2002 RX300
FS: 1934 Ford Street Rod, Blown 383 $48,500 Firm