Parts & Accessories Spare parts For sale: GMC classic dashboard. Quantity: Two. One has a cracked glass. One has a crack at the screw base, which can be repaired. I don't know if they work or not, or if they need maintenance. For sale: GMC grille and Chevrolet grille. The GMC grille has a minor crack, which will be shown in a video to serious buyers. The Chevrolet grille is new and intact.