Do The Westin Grate Step Nerf Bars 27-74745-1045 Mount To The Frame Or Body Of The Vehicle?
Updated 06/25/2026 | Published 06/21/2026
Question:
Westin Grate Step Nerf Bars with Custom Install Kit - 6-1/4inch Wide - Black Powder Coated Steel For my 1999 suburban k2500 td. Do these mount to the frame or the body of my vehicle?
asked by: Andrew S
Expert Reply:
Hey Andrew, thanks for reaching out. The Westin Grate Step Nerf Bars # 27-74745-1045 mount to the vehicle's frame, not the body. They use vehicle-specific brackets that attach to existing mounting points on the frame, which gives them a much stronger attachment than a rocker panel or body mounted step.
The frame-mounted design handles weight better, is generally more durable off-road, and doesn't put the load into the body sheet metal.
What do you use the Suburban for mostly? Work gear, family climbs, or trails?
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Product Page this Question was Asked From
Westin Grate Step Nerf Bars with Custom Install Kit - 6-1/4" Wide - Black Powder Coated Steel
- Nerf Bars - Running Boards
- Nerf Bars
- Rectangle
- 6-1/4 Inch Wide
- Cab Length
- Powder Coat Finish
- Fixed Step
- Steel
- Black
- Westin
more information >
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Andrew S.
6/24/2026
Just a driver. I have a 3 inch body lift and keys and shackles bringing it up another 1 inch. I was hoping the nerf bars were attached at the rocker so it would help hide the view of the frame.