Hi Everyone, I went from a 2500HD to a Yukon last year and towing is a completely different experience. I never had a WDH with my 2500HD but I got one with the Yukon. In talking with the guys who setup my hitch they said I needed to lift the entire back end of the yukon up to get the spring bars on. I'm really hesitant to do this since I have auto leveling suspension on the Yukon. I saw a guy with a WDH use a jack to lift the spring bars up and then he pushed them on. I'm curious how those with WDH put their spring bars on?