1973-74 Square Body Chevy Blazer & GMC Jimmy Molded Carpet
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 K5 Blazers are Large Hump
There are no holes cut out.
If you're not purchasing our Mass Backing insulation, we highly recommend adding this foil insulation kit. You'll notice the difference in comfort, heat reduction, and road noise every time you drive your truck. 1973-91 Square Body K5 Blazer & Jimmy Foil Heat Sound Deadener Insulation