- Signature Series (Black) [01-04 Silverado 1500 Heavy Duty / Silverado 2500 Heavy Duty / Silverado 3500 Crew Cab]

25-1955 Westin Signature Series Nerf Bars fits: 2001-2013 Chevy Silverado, 2001-2013 GMC Sierra. 25-1955 Westin Signature Series Nerf Bars Features - Custom-made to fit your specific year, make and model rig. Westin's signature step pad uses a recess rather than a cut-out for maximum strength and longevity. Constructed from burly 3-inch diameter mild steel. Installation takes less than 1 hour-no drilling required (most vehicles). Includes easy instructions and all mounting hardware. Westin Signature Series Nerf Bars - 542+ Reviews - Black & Chrome Finishes on Westin Signature Series Truck Nerf Bars. Westin 25-1955.