Original Style Trunk Area Underlayment for 1965-1970 Mustangs.If you are working on an interior restoration and are planing to redo your trunk area, you really should invest in trunk area underlayment. Trunk area underlayment is highly effective as a sound deadener, temperature barrier and vibration dampener.
This original style, Mustang trunk area underlayment covers the top of the gas tank. Die cut to fit perfectly. Also features an asphalt layer with needled cotton backing, just like the original underlayment.