USA1 Truck offers a die-cut foil style sound deadener for your 1973-87 Chevy & GMC Pickups that install directly under your truck carpet. Often found in later squarebody's, this material is 1/4" thick jute padding with a foil backing on one side.
Small Hump: 2WD, Automatic Transmission
Large Hump: 4WD, Manual Floor Transmission
Years Fit: 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987