1973-74 Square Body Chevy & GMC Truck Carpet Standard Cab Truck w/ Large Hump
Standard Jute is going to just cover the transmission hump and half of the area where your feet go. This sound deadener is 1/4 inch thick
Mass Backing is going to cover the whole entire carpet and is formed and molded to the carpet. The mass backing is 1/2 inch thick sound deadener insulation. (We recommend)
All 4WD trucks are Large Hump
All Manual trucks are Large Hump
All 2WD Automatic are Small Humps
If you did not purchase the mass backing we recommender purchasing this sound deadening product at minimum 1973-87 Square Body Chevy & GMC Truck Standard Cab Foil Heat Sound Deadener Insulation, All Humps
There are no holes cut out.
