I was browsing eBay as I do almost daily and ran across the E Auto Grills engine trans skid plate. It says for 4 door only but it appears to be a knockoff of the rock hard. I can't think of any differences between the 2 and 4 door as far as this part would be conserved. That said I don't care about what skid plate to buy or what one works better just wondering why this one is for 4 door only and the one it looks identical to is for both 2 and 4 door.