Yep, the 285/60/18 changed my speedometer about 4.5 miles at 40 mph. Which means when my speedometer says 40 mph. I'm really traveling about 44-45 mph.

Correct me if I'm wrong, but I think the Nitto 285/60/18s require just a bit of trimming. They are just a hair bigger than the Yokohama AVT 285/60/18s which require no trimming.

Peace.
Tom