For 1987-1988 GMC R2500 Rocker Arm Kit 72438XYGC Rocker Arm Stock

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

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

For 1991 GMC R2500 Suburban Rocker Arm 53267CCHY 7.4L V8 OHV Stock

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

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

For 1987-1988 GMC R2500 Rocker Arm 11597ZF Stock -- Without Rail

For 1987, 1989 GMC R2500 Rocker Arm Kit 44688JBHG Rocker Arm Stock