Putco 89889 Locker Side Rails for Silverado/Sierra Putco's traditional locker side rail design features unique cut-outs in each bed rail end providing innovative tie-down points Solid die cast construction on the bed rail ends allows for extreme tie down strength Easy no drill installation via stake pockets Stainless tubes are chromed to 44 hour CASS Tubes and rails are backed by Putco's NeveRust Lifetime Warranty