For 1987-1989 GMC R3500 Distributor Cap API 81371RGDY 1988 SERVICE TECH

API SERVICE TECH Distributor Cap fits GMC R3500 1987-1991 96PKHF

API 41BH83W Distributor Cap Fits 1987-1991 GMC R3500 SERVICE TECH SERVICE TECH

API SERVICE TECH Distributor Cap fits Chevy R3500 1989-1991 35NCQX

For 1987-1991 GMC R3500 Distributor Cap API 21832KFCQ 1988 1989 1990

API 57RC63H Distributor Cap Fits 1989-1991 Chevy R3500 SERVICE TECH SERVICE TECH