Please check notes in each part listing to ensure the Sound Dampening Material is correct for your 1974 CHEVROLET C20 SUBURBAN with a 5.7L 350 LPG engine. Special restrictions like "California only" or "with sport package" may indicate a Sound Dampening Material fits only certain 1974 CHEVROLET C20 SUBURBAN models.

Clicking a "More Info" link will display a picture and/or other details about that Sound Dampening Material in a separate window (you may need to turn off your pop-up-blocking software for this to work).

After choosing a Sound Dampening Material, click the "Add Part" button. Shipping costs will be shown on the Shopping Cart page. You may use your browser's Back button, or click on "Find More Parts", to find more Accessories-Interior parts, other CHEVROLET C20 SUBURBAN parts, or parts for a different vehicle. Please try our Interactive Catalog (click red Start button above) for faster searching. Both catalogs use the same shopping cart, so any auto parts you've already chosen for your 1974 CHEVROLET will not be lost if you switch.