How to Install LEER Running Boards

Feb 25 2026

Adding LEER Running Boards to your truck improves accessibility, enhances style, and provides a stable stepping surface for daily use. Designed for vehicle-specific fitment, these boards mount securely to factory locations using included brackets and hardware.
 
This guide walks through the installation process, based on the official LEER installation instructions. 
 
 
Tools Required
  • Before you begin, gather the following:
  • 13mm wrench
  • Torque wrench with 13mm socket
 
What's Included
 
  • Each kit includes:
    • (12) M8 x 1.25 x 25 Hex Bolts
    • (18) M8 Flat Washers
    • (6) M8 Hex Nuts
    • (3) Left Side Supports
    • (3) Right Side Supports
    • (1) Left Side Running Board
    • (1) Right Side Running Board
 
Step-by-Step Installation
 
Step 1: Identify Mounting Locations
 
  • Locate the factory mounting points along the rocker panel underneath the cab. These will correspond to the front, center, and rear bracket positions.
  • You'll install three brackets per side:
    • Front support
    • Center support
    • Rear support
  • The same procedure applies to both the driver and passenger sides.
 
Step 2: Install the Support Brackets
 
  • Position the correct bracket (left or right) at the first mounting location.
  • Using the supplied hardware:
    • Insert the M8 bolt with flat washer
    • Secure with flat washer and hex nut
    • Leave hardware slightly loose for adjustment
    • Repeat for the remaining two bracket locations on that side.
    • Important: Do not fully tighten hardware until the running board is mounted and aligned.
  • Torque specification for final tightening:
    • 25 Nm (18.5 lb-ft) 
 
Step 3: Attach the Running Board to the Brackets
 
  • Lift the running board into position and align it with the three installed supports.
  • Secure the board to each bracket using:
  • M8 bolts
  • Flat washers
  • Hex nuts
  • Start all hardware by hand before tightening.
 
Step 4: Align the Board
 
  • Before tightening:
    • Ensure the board is level
    • Confirm even spacing from front to rear
    • Verify proper alignment with cab body lines
    • Once satisfied with positioning, tighten all hardware to:
    • 25 Nm (18.5 lb-ft) 
 
Step 5: Repeat on Opposite Side
 
  • Repeat Steps 1–4 for the opposite side of the vehicle.
  • The installation procedure is identical for both sides.
 
Final Installation Check
  • All brackets securely mounted
  • Running board level and centered
  • Hardware tightened to 25 Nm (18.5 lb-ft)
  • No movement or play in board
Your LEER Running Boards are now ready for use.
 
Here are links to model specific installation guides:
 

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