Motofab 1 1/2 understrut. 20k miles on truck and lift. Rides great. No problems at all. Best $25 I ever spent. Fixes the awful take from the factory Tires are 305 55 20 BFG ATs on stock wheels
The lift on the trailboss is not a leveling kit. Trailboss comes with a 2" lift from the factory to all 4 corners. You still have to level the front 1 1/2" to get it to sit level.