Installation Instructions: HD Progressive Leaf Springs for Ford E150 | | E250 | E350 Fits:Ford E-Series E150, E250, E350 (Years 1992–Present)Rated for:Custom rear axle weight (GVWR-based)Feature:Built-in lift — no add-a-leaf or blocks required Ideal for:Camper builds, overlanding vans, work rigs, ambulance conversions, and any heavy rear-load setup. Ford Econoline Van E150 E250 E350 Heavy Duty … Continue reading Installation Instructions: Weldtec HD Progressive Leaf Springs for Ford Econoline / E-Series E150 E250 E350 vans