I had and used one with my old 5er but let it go with it. Our new 5er has the 4 point auto level and don't use one or feel the need for one.
2002 F-250 SD CC 7.3PSD Auto. XLT Short Bed 4X4 Off-Rd.Pkg.Highland Green,Westin Sportsman Grille Guard (Black) RBW Li'l Rocker Slider ,Prodigy Control Towing Jayco Eagle HT 30.5 MLOK,Handy 5er tailgate