Smittybilt TN1140-S4 User Manual

Installation Instructions

Sure-Step (Part # TN1140-S4)

04-06 Toyota Tundra Crew Cab

QTY PART # DESCRIPTION

1 TN1140-S4L or TN1080-S4L Sure-Step, left side
1 TN1140-S4R or TN1080-S4R Sure-Step, right side
1 HW-TN1140-S4 or HW-TN1080-S4 Hardware kit

NOTE: Please read this information before installing. Check components received with components listed
above. NO DRILLING REQUIRED for installation of these Sure-Step side bars. To obtain correct
installation, we recommend you to follow these step by step installation instructions carefully. Please take
care when installing this product to protect the finish and your investment.

Step One: Check contents of the hardware listed below.

QTY DESCRIPTION
2 Sleeve, 3/4 tubing
4 M10-1.5 x 30mm Hex Bolts, zinc plated GR5
4 M10 hex nuts, zinc plated
8 M10 flat washers, zinc plated
4 M10 lock washers, zinc plated
2 M12-1.75 x 140mm hex bolts, zinc plated GR5
2 M12-1.75 x 40mm hex bolts, zinc plated GR5
2 M12 –1.75x 50mm hex bolts, zinc plated GR5
4 M12 hex nuts, zinc plated
12 M12 flat washers, zinc plated
8 M12 split lock washers, zinc plated
4 3” plastic rings, (black)
1 front support bracket, left side
1 front support bracket, right side
1 front backup bracket, left side
1 front backup bracket, right side
1 rear support bracket left side
1 rear support bracket right side

Step Two: Locate one TN1140-S4L or TN1080-S4L side bar, one front support bracket, left side support
bracket, one front backup bracket, left side bracket, one rear support bracket left side bracket, two #30 plastic
rings, two M12x50mm hex bolts, two M12 flat washers, and two M12 split lock washers. Using the hardware
listed in this step, secure the brackets and rings to the side bar as shown in fig #2. Do not fully tighten hardware at
this time

Step Three: (REAR) Locate one M12 x 40mm hex bolt, one M12 hex nut, two M12 flat washers, one M12 lock
washer. Position the side bar under the left side of the vehicle. Place the rear support bracket up to the side of the

For Technical Support/Warranty Information please call 310-762-9944

Smittybilt, 1600 Walnut Parkway, Rancho Dominguez, CA 90220

Installation Instructions

Sure-Step (Part # TN1140-S4)

04-06 Toyota Tundra Crew Cab

frame as shown in fig #1. Secure the side bar to the frame with the hardware listed in this step. Do not fully
tighten the hardware at this time.

Step Four: (FRONT) Locate one M12 x 140mm hex bolt, one M12 hex nut, two M12 flat washers, one M12 lock
washer and one 801594 sleeve. Position the front support bracket up to the side of the frame. Align the large hole
in the bracket with the hole in the side of the frame and secure the bracket to the frame temporarily with the
hardware listed in this step as shown in fig #2. Using the remaining hole in the support bracket as a guide, mark
the backside of the cab support bracket.

Step Five: Locate two M10 bolts, two M10 hex nuts, three M10 flat washers and two M10 lock washers. Using
the hardware listed in step four and five, secure the front support brackets to the frame as shown in fig #2. Fully
tighten all hardware at this time.

Step Six: Repeat steps two through five on the opposite side of vehicle.

Fig #1

For Technical Support/Warranty Information please call 310-762-9944

Smittybilt, 1600 Walnut Parkway, Rancho Dominguez, CA 90220