Steelcraft STX400 Quick Installation Instructions

PARTS LIST:
1 Driver/left Sidebar
1 Passenger/right Sidebar
8 Mounting Brackets
16 8mm T-Bolts
PROCEDURE:
REMOVE CONTENTS FROM BOX. VERIFY ALL PARTS ARE PRESENT. READ INSTRUCTIONS
CAREFULLY BEFORE STARTING INSTALLATION. ASSISTANCE IS RECOMMENDED.
1. Start the installation under the driver side of the vehicle. Locate the 6 plugs along the bottom edge of
the body. Mounting Brackets will bolt to the 1st, 3rd, 4th and 6th threaded mounting holes, (Figures 1—
6). Remove the plastic plugs from each mounting location. Directly above each threaded insert is a top
mounting location on the side of the body panel. Hold a Bracket up in place to help determine the
mounting holes to use along the body. NOTE: Thread an 8mm Hex Bolt into the threaded inserts to
clear paint as required.
2. Select (1) Mounting Bracket. Starting at the front of the driver/left side, bolt the Mounting Bracket to the
factory threaded holes with (2) 8mm Hex Bolts, (2) 8mm Lock Washers and (2) 8mm Flat Washers,
(Figures 7 & 8). Do not tighten hardware at this time.
3. Repeat Steps 1 & 2 to install (3) Mounting Brackets on the remaining driver/left side mounting locations
along the body panel, (Figures 9—11).
4. Select the Driver/left Sidebar. Use the illustration above to help determine the correct Sidebar. Place
the Sidebar on top of the Brackets. IMPORTANT: Do not slide, (front to back), the Sidebar on the
Brackets or damage to the finish may result. Locate the channel openings in the bottom of the Sidebar.
Select (6) 8mm T-Bolts, (Figure 12). Insert the T-Bolts into the channels in the bottom of the Sidebar
closest to the Brackets, (Figure 13). Lift the Sidebar up and guide the studs through the Brackets.
19-20 1500 SILVERADO/SIERRA (EXCL. LD CLASSIC/LIMITED) CREW CAB
16
32
32
16
(8) Mounting
Brackets
Driver/left Sidebar
Page 1 of 4
2020 SILVERADO/SIERRA 2500/3500 CREW CAB
8-1.25mm x 30mm Hex Bolts
8mm Lock Washers
8mm x 24mm x 2mm Flat Washers
8-1.25mm Hex Nuts
5" SIDEBARS
Front
09/24/18 (RA) 400-