My 06 has leveling kit and cheap a$$ aftermarket rear springs (Dorman) rides Rougher than a rodeo bull. Truck has fuel offset wheels and 35’s on it & really would like to lift it 6” and go with 37’s. I do pull boat trailer occasionally (only 21’ boat) and not too far so I would rather have ride quality than towing ability. What’s best ride lift for this rig?