Congrats OP and welcome! I feel the OEM bed mat is an efficient mod. It helps prevent things from sliding close to your truck bed. My new wheel diameter is 108mm, it is obtainable in 106mm though the fitment guidebook on American Racing suggests 108mm, why? I do not know, https://bentdirectory.com/listings13178592/getting-my-full-legs-waxing-salon-in-lincoln-to-work