Ive been running 17s on SD axles 100% offroad for years, never had a rock jam in the wheel.Man that looks close. I’ve been on the fence with aftermarket wheels 17 vs 18. For me me this solidifies staying with an 18”. I can only imagine the rocks I’d have jammed in there scarring the wheel. The down side is there’s not many 37x18’s in D rating. Which is what the next set of rubber will be to soften the ride even more.