Please check notes in each part listing to ensure the Cab Mount is correct for your 1978 GMC C15 PICKUP BIG TEN with a 5.7L 350 4BBL engine. Special restrictions like "California only" or "with sport package" may indicate a Cab Mount fits only certain 1978 GMC C15 PICKUP BIG TEN models.

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

After choosing a Cab Mount, 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 Body-Exterior parts, other GMC C15 PICKUP BIG TEN 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 1978 GMC will not be lost if you switch.