Description: Side Rails. The backbone of the Cargo Management System: Anodized aluminum rails are weather-resistant and run nearly the full length of the bed. Dual-channel tracks make for fast and easy reconfiguring of the Cleat Tie Downs available from Custom Accessories - cleats can be locked in place every 3.5. Maximum load capacity of 1200 lbs. per rail. Two rails per kit. Dealer installation recommended. Note: Cleats and other accessories sold separately.