Can you say why? I've no experience with either. The only comments I've heard on the Ford kit were that it was more compliant, hangs down farther (in the way?) and that it costs about twice what the Hellwig does. I don't know how much if any of this is true. Truck was bought new, carries a lightweight popup camper...mostly on rough dirt roads rather than true off-road use.Helwig will work but I perfer the Ford 30mm...we have complete kits.