1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Snailfly Running Boards. Please read these instructions thoroughly before beginning installation or use to ensure safety and optimal performance. These running boards are designed to provide a convenient and secure step for entering and exiting your vehicle, while also offering a rugged aesthetic.
2. Compatibility
The Snailfly Running Boards are specifically designed for:
- FORD BRONCO 4-Door models (Years: 2021, 2022, 2023, 2024, 2025, 2026).
Note: These running boards are NOT compatible with the Ford Bronco Sport model.

This image illustrates the compatible vehicle type, a Ford Bronco 4-Door, and explicitly states that it is not for the Bronco Sport.
3. Package Contents
Before beginning installation, please verify that all components are present and undamaged:
- Two (2) Running Boards (Left and Right)
- Six (6) Mounting Brackets
- All necessary mounting hardware (screws, washers, nuts)

This image displays all the components included in the package, such as the running boards, brackets, and hardware.
4. Safety Information
- Always wear appropriate personal protective equipment (PPE) during installation, including safety glasses and gloves.
- Ensure the vehicle is parked on a level surface and the parking brake is engaged.
- If lifting the vehicle, use appropriate jack stands and follow vehicle manufacturer's safety guidelines.
- Do not exceed the maximum load capacity of 350 lbs per running board.
- Keep children and pets away from the work area during installation.
5. Setup and Installation
The installation process utilizes original mounting points on the vehicle chassis, requiring no drilling. For a visual guide, please refer to the official installation video below.
This video provides a detailed, step-by-step guide for installing the Snailfly Running Boards on a Ford Bronco 4-Door. It covers preparing the running boards, removing original vehicle screws, attaching brackets, and securing the running boards.
Step-by-Step Instructions:
- Prepare Running Boards: Using a screwdriver, tighten the black screws on the end caps of each running board. This secures the end caps in place.
- Remove Original Vehicle Screws: Locate the factory mounting points on the vehicle's chassis. Remove the original screws from these points. These screws will be reused to fix the mounting brackets. Note that the mid and rear brackets are identical, while the front bracket is the longest one.
- Prepare Mounting Hardware: Remove the nuts and washers that are pre-installed under the running boards. Keep them organized for later use during the final assembly.
- Position T-screws: Slide the T-screws along the channel on the underside of the running boards to align them with the corresponding locations where the brackets will attach.
- Align and Mount Running Board: With assistance, carefully lift the running board and align the T-screws with the holes in the previously installed mounting brackets.
- Secure Hardware: Once aligned, mount the washers and nuts onto the T-screws and hand-tighten them.
- Final Tightening: After all running boards are in place, use appropriate tools to securely tighten all nuts and bolts. Ensure all connections are firm and stable.
- Final Check: Double-check all hardware to ensure everything is securely fastened. Installation is now complete.
6. Operating Instructions
The Snailfly Running Boards are designed for ease of use and durability. To use, simply step onto the board when entering or exiting your Ford Bronco. The textured surface provides enhanced grip and traction, especially in wet or muddy conditions, ensuring a secure footing.

This image highlights the textured rubber surface of the running board, designed for optimal grip.
7. Maintenance
Regular maintenance will prolong the life and appearance of your running boards:
- Cleaning: Wash the running boards regularly with mild soap and water to remove dirt, mud, and road grime. Avoid abrasive cleaners or harsh chemicals that could damage the finish.
- Inspection: Periodically inspect all mounting hardware (screws, nuts, and brackets) for any signs of looseness or corrosion. Tighten any loose fasteners immediately.
- Damage Check: Check the running boards for any physical damage, such as dents, cracks, or peeling finish. Address any damage promptly to prevent further deterioration.
8. Troubleshooting
- Running Board Feels Loose: If a running board feels unstable or loose, immediately check all mounting bolts and nuts. Re-tighten them to the recommended torque specifications. If the issue persists, inspect the brackets and vehicle mounting points for any damage or wear.
- Unusual Noises (Rattling/Squeaking): This often indicates loose hardware. Inspect all fasteners and ensure they are securely tightened. Check for any contact points between the running board and the vehicle chassis that might be causing friction.
- Difficulty Stepping: Ensure the textured surface is clean and free of debris that might reduce grip.
9. Specifications
| Feature | Detail |
|---|---|
| Brand | Snailfly |
| Model Number | SnailflyRDTB-FB004D |
| Material | Acrylonitrile Butadiene Styrene (ABS), Aluminum |
| Exterior Finish | Aluminum, Black Powder-Coated |
| Vehicle Service Type | Ford Bronco 4-Door 2021+ |
| Item Weight | 17.78 Kilograms (39.1 pounds) |
| Maximum Load Capacity | 350 lbs |

This image highlights the robust construction and load capacity of the running boards.
10. Support
For any questions, concerns, or assistance with your Snailfly Running Boards, please contact Snailfly customer support. We aim to provide support within 24 hours to ensure your satisfaction.