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LUVERNE MegaStep wheel-to-wheel running boards give you the best of both worlds with a ready-to-work construction and the stylish of popular nerf bars. They feature high-traction rubber treads, a sleek finish and a non-corrosive build -- all to give you dependable footing whether you're headed for work or play. MegaStep wheel-to-wheel running boards are uniquely designed with extra length on the rear of the boards, reaching all the way to the back wheels. This provides a convenient and secure step for reaching into the truck bed and accessing the crossover truck tool box, headache rack or 5th wheel hitch. The entire length of the running boards is covered with a non-skid rubber tread for enhanced safety, even in wet, rainy conditions. Unlike plastic treads, rubber offers better grip for your boots or shoes. The base of MegaStep wheel-to-wheel running boards is an extruded aluminum alloy, providing excellent strength, while remaining lightweight and completely rust-free. To give these truck side steps a touch of style, they are fitted with a polished stainless steel trim that contours around the boards and gives them a look similar to popular nerf bars. The trim piece is polished to a mirror-like shine and easily withstands rain, snow, dirt and more. To make installation fast, easy and secure, LUVERNE MegaStep wheel-to-wheel steps are made vehicle-specific. Each set has a specific board length and vehicle-specific brackets, providing a custom fit for each unique truck. The brackets install using pre-existing mounting points to eliminate difficult modifications, and the running boards can be positioned inward, outward, forward or backward to suit personal preferences. This particular set of MegaStep wheel-to-wheel running boards is designed for specific years of the Chevy Silverado 1500, 2500, 2500 HD, 3500 or 3500 HD and GMC Sierra 1500, 2500, 2500 HD, 3500 or 3500 HD (see application information to verify fitment; brackets included but shipped separately).
LUVERNE MegaStep 6-1/2" wheel-to-wheel running boards are the ultimate combination of style and functionality, featuring 5" wide rubber treads that extend the full length of the side steps for dependable, non-skid traction wherever the road takes you.
LUVERNE has manufactured truck accessories in the United States since 1963, specialising in grille guards, running boards, side steps and mud guards for pickups, commercial vans and SUVs. Products are built primarily from stainless steel, aluminium and mild steel, with model-specific mounting kits that use existing frame locations for a bolt-on installation.
LUVERNE has been manufacturing automotive accessories in the United States since 1963, and six decades of continuous production have made it a nationally recognised name in the truck accessory market. Now a Lippert brand, it concentrates on a defined set of products rather than spreading across the whole aftermarket: front-end protection, step access and spray protection for pickup trucks, commercial vans and sport utility vehicles.
Step products are the largest part of the catalog and the range is unusually deep, because the right step depends on the vehicle's ride height, the width of the rocker panel and how often people get in and out. The O-Mega II six-inch oval steps give a wide, flat standing surface in polished stainless or black powder coat, while the Regal 7 seven-inch oval steps go wider still for full-size crew cabs and lifted trucks. The broader running board and side bar range covers round tube, oval and boxed profiles across cab configurations, with treads positioned at the door openings where they are used.
Grille guards protect the front end against impacts, brush and road debris, built in tubular stainless or steel with model-specific brackets that tie into factory frame mounting points. Because the fit is engineered per vehicle, installation is a bolt-on job that does not require drilling or cutting on most applications.
Rounding out the line, LUVERNE mud guards and mud flaps shield rocker panels, paint and following vehicles from stones and road spray, in widths matched to the tyre and fender they sit behind. Material choice runs through everything the brand does: stainless steel where appearance and corrosion resistance matter most, aluminium where weight is the priority, and mild steel with protective coating where strength and value lead. Customers include contractors, fleet operators, van upfitters and truck owners.
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19 compatible vehicles
| Year | Make & Model | Style | Bed | Notes |
|---|---|---|---|---|
| 1999 - 2013 | Chevrolet Silverado 1500 | Extended Cab Pickup | 8'2" Bed | — |
| 2007 | Chevrolet Silverado 1500 Classic | Extended Cab Pickup | 8'2" Bed | — |
| 2001 - 2002 | Chevrolet Silverado 2500 | Extended Cab Pickup | 8'2" Bed | — |
| 2007 - 2014 | Chevrolet Silverado 2500 HD | Crew Cab Pickup | 6'7" Bed | — |
| 2001 - 2013 | Chevrolet Silverado 2500 HD | Extended Cab Pickup | 8'2" Bed | — |
| 2001 - 2006 | Chevrolet Silverado 3500 | Extended Cab Pickup | 8'2" Bed | — |
| 2007 | Chevrolet Silverado 3500 Classic | Extended Cab Pickup | 8'2" Bed | — |
| 2011 - 2014 | Chevrolet Silverado 3500 HD | Crew Cab Pickup | 6'7" Bed | — |
| 2007 - 2013 | Chevrolet Silverado 3500 HD | Extended Cab Pickup | 8'2" Bed | — |
| 1999 - 2013 | GMC Sierra 1500 | Extended Cab Pickup | 8'2" Bed | — |
| 2007 | GMC Sierra 1500 Classic | Extended Cab Pickup | 8'2" Bed | — |
| 2001 - 2002 | GMC Sierra 2500 | Extended Cab Pickup | 8'2" Bed | — |
| 2001 - 2014 | GMC Sierra 2500 HD | Crew Cab Pickup | 6'7" Bed | — |
| 2001 - 2013 | GMC Sierra 2500 HD | Extended Cab Pickup | 8'2" Bed | — |
| 2007 | GMC Sierra 2500 HD Classic | Extended Cab Pickup | 8'2" Bed | — |
| 2001 - 2006 | GMC Sierra 3500 | Extended Cab Pickup | 8'2" Bed | — |
| 2007 | GMC Sierra 3500 Classic | Extended Cab Pickup | 8'2" Bed | — |
| 2011 - 2014 | GMC Sierra 3500 HD | Crew Cab Pickup | 6'7" Bed | — |
| 2007 - 2013 | GMC Sierra 3500 HD | Extended Cab Pickup | 8'2" Bed | — |
The CURT 571117 W2W Mega Step Brackets fit 2011 and newer Chevrolet and GMC 1500, 2500, and 3500 Series pickups in Regular, Extended, and Crew Cab configurations. The step board assembly (Item #1) is sold separately and length varies by application. Confirm your truck model year, series, and cab style before ordering.
Yes, the 571117 fits Regular Cab pickups. However, Regular Cab applications use only the front and center mounting brackets (Items #2, #3, #4, #5) and do not use the rear cab mounting bracket assembly.
The front and center brackets are the same for both cab styles. The rear mounting bracket assembly differs: Extended Cab uses the bottom single hole and bottom double holes in the rear inboard bracket (Item #8), while Crew Cab uses the bottom single hole and top double holes. Both configurations torque the rear outboard bracket bolts to 19 lb. ft.
The kit includes mounting brackets (front, center, rear inboard and outboard), spring hanger brackets, load reaction studs, fasteners (bolts, nuts, washers, screws), and hardware. The mega step board assembly (Item #1) is sold separately. Verify all parts listed in the Service Parts List (Items #2–#26) are present before installation. The kit does not include the step board itself.
The mega step board assembly (Item #1) is sold separately. Length varies depending on application. You must purchase the board separately from the bracket kit.
The manual does not mention disconnecting the battery. No electrical work is required for this installation.
The manual does not specify whether professional installation is required. The installation involves removing and replacing factory body mount bolts, loosening spring hanger bolts, and assembling and torquing multiple fasteners. If you are not comfortable working with fasteners and torque specifications, professional installation is recommended.
The manual does not specify whether lifting equipment is required. However, the installation involves accessing body mount bolts and spring hanger bolts on the frame, which typically requires the truck to be lifted or on a lift.
The manual warns that 2010+ GM Silverado/Sierra vehicles have excessive thread locker in the body mount bolt area. Use caution when removing the body mount bolts to reduce the risk of causing damage to the threaded inserts inside the vehicle.
Follow this sequence: (1) Assemble load reaction studs with hardware (Items #13–#16); (2) Attach load reaction stud assemblies to body mounting brackets; (3) Remove factory body mount bolts one side at a time and install front, center, and rear mounting brackets (finger tight); (4) Attach spring hanger mounting brackets (finger tight); (5) Attach the step board to the mounting brackets; (6) Tighten all fasteners to specification.
Yes. For 1500 models, you must attach bracket 551571 (Item #23) to brackets 551902 and 551905 (Items #2 and #3) in order to use the load reaction stud. Extended and Crew Cab 2500 and 3500 models also use load reaction studs. The manual does not clarify whether Regular Cab 2500/3500 models require them.
On the short threaded end of the load reaction stud (Item #16): install a black 3/8" serrated flange nut (Item #15) backwards to the bottom of the thread, then install a black 3/8" flat washer (Item #14) and rubber cushion washer (Item #13) tight against the serrated flange nut. The end of the stud must be recessed in the rubber washer approximately 3/16". On the long threaded end, install a black 3/8" serrated flange nut (Item #15) backwards near the bottom of the threads.
Remove the factory front body mount bolts and install the front mounting brackets (Items #2 and #3) to the front cab mount. Remove the factory center body mount bolts and install the center mounting brackets (Items #4 and #5) to the center cab mount. Leave all fasteners finger tight at this stage. Install one side of the vehicle at a time.
Install the rear inboard mounting bracket (Item #8) with washer (Item #22) to the rear cab mount (finger tight). Then install the rear outboard bracket (Items #6 and #7) to the back side of the rear inboard bracket using 3/8" black zinc plated bolts (Item #17), washers (Item #14), and serrated flange nuts (Item #15). Use the bottom single hole and bottom double holes in the rear inboard bracket. Put bolts through the front side so serrated flange nuts are on the back side for frame clearance. Torque bolts to 19 lb. ft.
Install the rear inboard mounting bracket (Item #8) with washer (Item #22) to the rear cab mount (finger tight). Then install the rear outboard bracket (Items #6 and #7) to the back side of the rear inboard bracket using 3/8" black zinc plated bolts (Item #17), washers (Item #14), and serrated flange nuts (Item #15). Use the bottom single hole and top double holes in the rear inboard bracket. Put bolts through the front side so serrated flange nuts are on the back side for frame clearance. Torque bolts to 19 lb. ft.
Loosen the spring hanger bolt just enough to slide the inboard spring hanger mounting bracket (Item #10) up behind the flange of the bolt. Position it behind the flange with the channel open to the outboard side. Install the outboard spring hanger bracket (Item #9) so its inboard vertical portion fits inside the channel of the inboard bracket, using 3/8" zinc plated bolt (Item #18), washers (Items #19 and #20), and 3/8" zinc plated nylock nut (Item #21). Leave fasteners finger tight.
Insert four 5/16" square head screws (Item #11) in the center slot on the underside of the step (or three if using cab length boards). Position the step on the mounting brackets so the square head screws are in the center two slots of the brackets and the front of the step is about even with the rear metallic flange of the front wheel well. Locate the step in and out as desired and install 5/16" serrated flange nuts (Item #12) on the screws. Tighten nuts to 19 lb. ft.
Finger tight means tightened by hand only, without using tools. Many fasteners are left finger tight during assembly and then fully tightened to specification in the final tightening steps (Section 6.4–6.6).
Torque the 3/8" bolts connecting the rear outboard bracket to the rear inboard bracket to 19 lb. ft. This applies to both Extended Cab and Crew Cab configurations.
Tighten the 5/16" serrated flange nuts on the square head screws to 19 lb. ft.
Tighten all remaining 3/8" bolts and nuts to 19 lb. ft., except where otherwise specified. This includes the bolts connecting the spring hanger brackets and the load reaction stud fasteners.
The manual does not provide specific torque values for factory body mount bolts or the spring hanger bolt. It refers only to 'manufacturers specs' and 'manufacturers specs' respectively. Consult your vehicle's service manual or contact the manufacturer for the correct torque values.
The rubber cushion washer (Item #13) is 0.354" ID × 1.00" OD × 0.75" thick.
The load reaction stud (Item #16) is a double-ended steel stud, 3/8-16 × 4.50", black zinc plated.
CURT Group recommends regular inspection and maintenance of the leaf spring attachment point per GM Technical Service Bulletin 09-03-09-001E: Clunking Noise from Rear of Vehicle (Re-torque Leaf Spring Bolts) for 2007–2017 Chevrolet and GMC trucks. Failure to regularly inspect and maintain factory-recommended torque values may result in damage to the vehicle.
After installation, verify that all fasteners are tightened to specification (19 lb. ft. for most fasteners, and manufacturer specs for factory bolts). Confirm the step board is positioned correctly with its front about even with the rear metallic flange of the front wheel well. Check that the step does not interfere with the vehicle frame or other components. Inspect the leaf spring attachment point per GM Technical Service Bulletin 09-03-09-001E.
The manual recommends regular inspection and maintenance of the leaf spring attachment point per GM Technical Service Bulletin 09-03-09-001E. The specific re-torque interval is not stated in this manual; consult GM TSB 09-03-09-001E or your vehicle's service manual for the recommended interval.
Yes, the 571117 fits 2011 and newer Chevrolet and GMC 1500, 2500, and 3500 Series pickups in Regular, Extended, and Crew Cab configurations. The step board is sold separately.
No, the mega step board assembly (Item #1) is sold separately. Length varies by application.
Yes, you must remove the factory front, center, and rear body mount bolts (one side at a time) and replace them with the mounting brackets. Use caution on 2010+ Silverado/Sierra due to excessive thread locker.
Tighten all 3/8" bolts and nuts to 19 lb. ft. Tighten 5/16" step board fasteners to 19 lb. ft. Tighten factory body mount bolts and spring hanger bolt per manufacturer specs.
Yes, 1500 models require load reaction studs. You must attach bracket 551571 to the front brackets to use them. Extended and Crew Cab 2500/3500 models also use load reaction studs.
Regularly inspect and maintain the leaf spring attachment point per GM Technical Service Bulletin 09-03-09-001E. Failure to maintain factory-recommended torque values may result in vehicle damage.
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