For 1987-1990 GMC R3500 Rocker Arm 81646WTTC 1988 1989 7.4L V8 OHV Stock

For 1987-1990 GMC R3500 Rocker Arm Ball 78752MVNJ 1988 1989 7.4L V8 OHV Stock

For 1987-1990 GMC R3500 Rocker Arm Ball 18589RCRB 1988 1989 7.4L V8 OHV Stock

For 1987-1990 GMC R3500 Rocker Arm 61989HG 1988 1989 7.4L V8 OHV Stock

For 1987-1990 GMC V3500 Rocker Arm Kit 41572CKMM 1988 1989 7.4L V8 OHV

For 1987-1990 GMC V3500 Rocker Arm Kit 83657NRMM 1988 1989 7.4L V8 OHV

For 1987-1990 GMC R2500 Suburban Rocker Arm 98471XFTY 1988 1989 7.4L V8 OHV

For 1987-1990 GMC R3500 Rocker Arm Kit 75716ZDWG 1988 1989 7.4L V8 OHV