Yup. It's an open diff with stock-size Bronco axles and brakes, and they could only go to the lowest ring and pinion gears available for the front, but it is only running 35"s so they should be ok. Last year they teamed up with a guy from Oregon(?) in a 14 truck and timed out after snapping an i-beam in the wash with 5 minutes to go. This year, plan is to be smart, race the clock and not the competition, let 4 different guys share the driving, and have a good time. They might run the SCORE series next year too. Is Kovachs in a new Class 6 truck or are they racing their old 4wd 7S Ranger?