I'm using a set of Onki 80" running boards w/lights they have the same pattern as our sill plates and bumper step areas. Although the material has a lot of rubber content. So much one would think it is all rubber. They were installed as tight to the cab/rockers as possible ,so I only lost about a 1/2" of clearance at most. They are rated at 450 lbs and have been tested. (two men at the same time) Had a close call when I backed over a 18" log trying to get to my trailer, noticed left side of truck raising up, looked down and said " aaw @#$%", pulled forward and found no damage or bends. Not trying to sell you on any brand , although you may consider this extruded aluminum type due to the high clearance feature and it's inherent strength. sorry about the spelling. Will let everyone know what a suitable lighting pick-up is ,i'm about to test the cargo lamp feed due to my beliefs that it shuts off immediately and won't chatter my aux. relay that was supplied with the boards. interior lighting has a "soft off" feature and is regulated on the ground/common side thru the controller. Mark Thompson