73-87 C-10 Composite Inner Fenders73 87 C10 Composite inner fenders. We've teamed up with the best in the composites industry to offer a direct replica of our popular steel inner fenders. Now available in cost effective fiberglass or stylish and super light carbon fiber. Fiberglass come in gloss black gelcoat and carbon fiber are available in gloss finish only. 73 87 Squarebody C10 Static drop inner fenders. These inner fenders are designed for stock crossmember applications and some