BackRack 99-16 Superduty 8ft Bed Siderails - Toolbox 21in spo-default spring-centered race disc features a

spring-centered race disc features a spring-center to properly damp torsional vibrations and resist failure under harsh conditions

press formed and folded 3mm sheet steel is used in ARB UVP to provide superior strength

Temperature range is -40F to 250F

Standard Duty) is a single-path system

BackRack 99-16 Superduty 8ft Bed Siderails - Toolbox 21in spo-default spring-centered race disc features aSERIOUS STRENGTH: We get it. You do not want Siderails that try to look tough but have no purpose. BACKRACK(TM) Siderails are industrial grade and designed for trucks that push the envelope of on the job abuse. Heavy gauge HRPO tube is fully welded to an angular base that runs the full length of your truck bed. We expect you to overload your truck. BACKRACK(TM) Siderails are ready to handle whatever you bring to the job site. RUGGED GOOD LOOKS: If it