IB(5”,4”)RUNNING BOARD
1999-2013 SILVERADO 1500/2500/3500 REGULAR CAB
3. Locate the two factory holes in the bottom of the frame towards the front of the vehicle, (Figure 4).
Insert (1) 10mm Nut Plate, (Figure 5), into the oval hole and line up the threaded nut with the forward
round hole, (Figure 4).NOTE: Nut Plate and Support Brackets are not required on 2011-14 25-3500
models.
4. Attach the flat end of the passenger side front Support Bracket to the Nut Plate with (1) 10mm x 30mm
Hex Bolt, (1) 10mm Lock Washer and (1) 10mm Flat Washer, (Figures 6 & 7). Do not tighten hardware
at this time.
Up to 2010 25-3500 Models-Support Bracket not required on 2011-14 25-3500 Models:
Note that the Front Support Bracket will not reach up to the Mounting Bracket, (Figure 7). Tighten the
Support Bracket to the Nut Plate in the frame. Carefully push up on the Support Bracket until it reaches
the inside hole in the Mounting Bracket. Bolt the Support Bracket to the hole in the Mounting Bracket
with (1) 10mm x 30mm Hex Bolt, (2) 10mm Flat Washers, (1) 10mm Lock Washer and (1) 10mm Hex
Nut, (Figures 7 & 8). Do not tighten at this time.
5. Continue on to the rear body mount. Repeat Steps 1 & 2 to attach the passenger side rear Mounting
Bracket to the body mount, (Figure 9). Leave hardware loose at this time.
6. Select the Running Board. Slip (8) 6mm T-Bolts into each bottom channel (Figure 10).Carefully
position the Running Board onto the Mounting Brackets. Attach the Running Board to the Mounting
Brackets with (4) 6mm T-bolts,(4)6mm flat washers and (4)6mm lock nuts, (Figure 11). Do not tighten
hardware at this time.
7. Level and adjust the Running Board and fully tighten all hardware.
8. Repeat Steps 1—7 for driver side Running Board installation.
9. Do periodic inspections to the installation to make sure that all hardware is secure and tight.
To protect your investment, wax this product after installing. Regular waxing is recommended to add a protective layer
over the finish. Do not use any type of polish or wax that may contain abrasives that could damage the finish.
For Polished Finishes: Aluminum polish may be used to polish small scratches and scuffs on the finish. Mild soap may
be used also to clean the Running Board.
For Black Finishes: Mild soap may be used to clean the Running Board.
Passenger Side Installation Pictured
(Fig 1) Driver side front mounting bracket pictured
(Fig 2) Passenger side front Brackets
