This is the cab floor support or sub frame for the 1973-91 Chevy/GMC Suburban, Blazer/Jimmy. Fits left or right side. Requires 2 per vehicle.
Fits Years: 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991