These Putco Oval Cross Rails for 2004–2007 Chevrolet Silverado/GMC Sierra 1500 (5'8" bed) give secure tie-down points rated up to 1,000 lbs of tie-down force. The rails use 1.75" by 2.5" chrome-coated stainless tubes and die-cast aluminum stanchions, mount without drilling into factory stake pockets with vehicle-specific hardware, and occupy minimal bed-wall area to stay compatible with most tonneau covers while providing durable NeveRust protection.
Putco 03-06 Chevrolet Silverado - 5.5ft Bed Crossrails