For 1987-1988 GMC R2500 Rocker Arm Kit 73648XKCQ Rocker Arm Stock

For 1987-1988 GMC R2500 Rocker Arm 12475NJRM Stock -- without Rail

For 1987-1988 GMC R2500 Rocker Arm 75137XHWZ Stock -- without Rail

For 1987, 1989 GMC R2500 Rocker Arm Kit 93826SVFR Rocker Arm Stock

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

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

For 1987-1989 GMC R2500 Rocker Arm Ball 79672FZFR 1988 7.4L V8 OHV Stock

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