Original Style Rear Seat Underlayment for 1965-1970 Mustang Fastbacks.If you are working on an interior restoration, you really should invest in rear seat underlayment. Rear seat underlayment is highly effective as a sound deadener, temperature barrier and vibration dampener.
This original style, Mustang rear seat underlayment covers the area directly underneath the rear seat. Die cut to fit perfectly. Also features an asphalt layer with needled cotton backing, just like the original underlayment.