The Factory GMC 3inch round steps that mount to the rocker panel. how do they work out like that does it bend the rocker panel at all. I see aftermarket stuff mounts using the cab mounts but i heard that isnt the best thing to do. thanks josh

 

the GMC/Chevy factory bars for my crew cab mount to the cab in 4 sections using 8 bolts. They bolted on in L bracket fashion mounts directly to the frame of the truck. I can take you a picture of the underside of the mount if you want to see.

I have had them for 2 years on my 09 with no problems, rust or corrosion. In VA they like to throw down salt and sand any time we get a threat of snow and I havent seen any wear on them up to this point.

GM Part # 19213586
http://www.gmpartsdirect.com/results...umber=19213586

Thats the part number for the black 3inch step side for the crew cab I have that also fit the 2013 Siera Crew Cab. I will take you a picture when I get home so you can see the mounting under chasis and see if that will bother you or not on your truck.

 

Here are the pics I promised you. Those are the black powder coated GM 3 inch step bar.