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

For 1987, 1989 GMC R2500 Rocker Arm 71299VDTK Stock

For 1987, 1989 GMC R2500 Rocker Arm 43135SHYR Stock

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

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

For 1987-1989 GMC R2500 Rocker Arm Ball 49166TNRQ 1988 7.4L V8 OHV Stock

For 1987-1990 GMC R2500 Suburban Rocker Arm Ball 79953YQKG 1988 1989 7.4L V8 OHV

For 1987-1990 GMC R2500 Suburban Rocker Arm Ball 86828CNSF 1988 1989 7.4L V8 OHV