For 1987-1988 GMC R2500 Rocker Arm 48626QTGX 4.8L 6 Cyl Stock

For 1987-1988 GMC R2500 Rocker Arm 87282VNMB 4.8L 6 Cyl Stock

For 1987-1988 GMC R2500 Rocker Arm Kit 32651FQWD 4.8L 6 Cyl Rocker Arm Stock

For 1987-1988 GMC R3500 Rocker Arm Kit 64352BVQS 4.8L 6 Cyl Rocker Arm Stock

For 1987-1988 GMC R3500 Rocker Arm Kit 81599JSRX 4.8L 6 Cyl Rocker Arm Stock

For 1987-1988 GMC V3500 Rocker Arm Kit 58621BCNN 4.8L 6 Cyl Rocker Arm Stock

For 1987-1988 GMC R3500 Rocker Arm 85549NFQV 4.8L 6 Cyl Stock

For 1987-1988 GMC V3500 Rocker Arm 93696JDTK 4.8L 6 Cyl Stock