For 1987-1989 GMC R2500 Back Up Light Bulb API 19367HPBS 1988 Back Up Light

API ProTune Back Up Light Bulb fits GMC R2500 1987-1989 66GNQG

For 1987-1991 GMC R2500 Suburban Back Up Light Bulb API 73743JYWX 1988 1989 1990

For 1989 Chevrolet R2500 Back Up Light Bulb API 77724SPPQ Back Up Light

API 66ZJ24M Back Up Light Bulb Fits 1987-1991 GMC R2500 Suburban

API 27BZ18M Back Up Light Bulb Fits 1989 Chevy R2500

For 1988-1989 GMC R2500 License Light Bulb API 42533NZBV

For 1989-1991 Chevrolet R2500 Suburban Back Up Light Bulb API 13667FSXN 1990