Vantech Aluminum H1 Rack 2 Bar System for a Chevy Express 1996-On Maximum weight capacity 500 lbs. (evenly distributed) Aluminum rack system with Steel Drip Rail Clamps. Powdercoated white. Steel Drip Rail Clamps easily secure to vehicle without drilling. Lightweight system weighing in at 19 lbs. for a 2 bar system Cross bars is extruded aluminum with channels to fit rubber bar guards.