My guess is a 2" body lift - look at the gap between the bumper and grill. Also if you go to that link & see the pic of the back of the same Bronco you can see the same gap at the rear. I think the tires are 31" based on the fact that I've had that size on a couple different Broncos. My 66 has a 1 1/2-2" suspension lift & 31x10.5x15 tires & the gap at the rear wheel opening is about the same as the truck you posted.