according to "ask a trooper" a MN site for automotive questions that MN troopers answer, in MN a trucks height is measured from the BOTTOM of the bumper to the ground and if your valance is on, they measure from THAT to the ground. the MN law states a trucks bumper must be no higher than 30" from the bottom of the bumper to the ground, so, like stated earlier, if you've got a valance, your truck can be lifted higher than a truck without a valance. woo hoo keep those valances on!
also, in MN a cars bumper cannot exceed 24".
2001 Ranger Edge Supercab 4X4 4.0L with 4.10's (8.8 axle)