The rollers are mostly useless. I bought them so I can roll away from a wall and back. I only have a 2 car garage and my wife needs to park on the other side. Her Q7 has huge doors (door dings) and I want to be able to slide the truck as far to the side as possible.Saw that it was on those roller thinga-ma-jigs to move the truck around. Everything I’ve read is that unless you buy really really nice ones that they aren’t going to roll for crap. I’d image with a truck as heave as the 80 that they are basically worthless. Along with lowering the tires pressure as suggested above, you might as well remove those rollers for more clearance as well.
I can move it with all my strength but I am 6'4" and 235lbs. Ill likely try to rige up something to make it easier.
Basically I would not recommend them as they really do not work for 90% of SUV/truck applications.