I have a couple of the stock Hella covers laying around and will never use. The practically the same as the FJ covers, just white and say Hella. I can send one to you to see how or if it fits. Seeing as I have 6 Factory FJ covers and 2 of the grille type Hella ones, I won't need these ever. If you message me your address I can send it out. The Hella lights are 6.4" in diameter. The lip that slips over the edges is about 3/4"