For 1977-1978 GMC K35 Rocker Arm 22585FSYC 4.8L 6 Cyl Stock

For 1977-1978 GMC K35 Rocker Arm 97812FBHM 4.8L 6 Cyl Stock

For 1977-1978 GMC K35 Rocker Arm Kit 33296NTQN 4.8L 6 Cyl Rocker Arm Stock

For 1975-1978 GMC G25 Rocker Arm 53962MTTK 1976 1977 4.8L 6 Cyl Stock

For 1975-1978 GMC P15 Rocker Arm 82387ZCMS 1976 1977 4.8L 6 Cyl Stock

For 1975-1978 GMC P25 Rocker Arm 65237QFRW 1976 1977 4.8L 6 Cyl Stock

For 1975-1978 GMC C25 Suburban Rocker Arm 33329WGKM 1976 1977 4.8L 6 Cyl Stock

For 1975-1978 GMC G25 Rocker Arm 32271HHNY 1976 1977 4.8L 6 Cyl Stock