I had the Nitto 555R (DR) 305-40-18 on my Roush 18x9s they bulged a little but fit ok! Nitto tires run a bit smaller, i had the 275s and they looked wimpy! Best 60ft out of the Nittos was 1.8 for me. Also had the BFG DRs and they run a bit wider then the Nitto! The BFGs hooked waaaay better once...