BAKFlip MX4 is a hard-folding tonneau cover designed to offer durability, ease of use, and seamless integration with a variety of truck models. This guide provides a step-by-step walkthrough of the installation process, as well as key tips for optimal performance and maintenance. The instructions and recommendations are derived from official installation manuals, user reviews, and technical documentation.
Installation Overview and Preparation
The BAKFlip MX4 is a clamp-on tonneau cover that is designed to be installed without permanent modifications to the truck bed. The installation process is largely uniform across most models, though some variations exist depending on the truck’s year and configuration. Before beginning, it is recommended to read through the provided instructions thoroughly, as they include model-specific guidance and diagrams.
According to the installation documentation, users should ensure they have all the necessary tools and hardware included in the package. The kit includes clamps, bolts, nuts, washers, and sealing components. Some trucks may require drilling for rail mounting, while others utilize existing rail channels. The installation should take between 30 to 60 minutes for first-time users and less for those with prior experience.
Key Installation Steps
Unbox and Prepare Components
Begin by unboxing the BAKFlip MX4. The cover is typically shipped in a large, well-organized package weighing between 40 and 50 pounds. Two people may be needed to lift it out of the box. Ensure all components are present and undamaged.Position the Cover Over the Truck Bed
Align the cover with the truck bed, ensuring that the rails match the sides of the bed. For models with squared rails, alignment is straightforward and typically does not require shimming. For trucks with Utili-Track or other rail systems, additional alignment sheets are available.Install Clamps and Secure the Rails
Insert the clamps into the rail channels. Use the included hardware to secure the clamps to the rails. A locking washer should be placed between the nut and the rail mount, as recommended in the manual. The bolts should be tightened loosely at first to allow for adjustment.Test Position and Secure Fully
After the cover is loosely installed, close the tailgate and test the cover to ensure it opens and closes smoothly. Adjust the position if necessary, then tighten the nuts fully by hand. The low-profile mounting bolts should sit flush with the top of the cover and provide a secure fit.Seal the Front Edge
The front edge of the cover should be sealed to prevent water ingress. Apply the sealing strip according to the instructions and ensure it is properly positioned.Install Drainage System
BAKFlip includes a drainage system to manage water buildup in the rail channels. Attach the drain tubes as directed, ensuring they direct water away from the truck bed and out of the cover. Regular checks are recommended to prevent clogging and water damage.Final Testing and Adjustments
Open and close the cover several times to verify smooth operation. Ensure there is no friction or misalignment. Check that the tailgate closes properly with the cover in place.Optional Accessories
For added functionality, consider installing optional accessories such as side rail kits, lighting kits, or crossbed toolboxes. These can enhance both the utility and appearance of the cover.
Compatibility and Model-Specific Considerations
The BAKFlip MX4 is compatible with a range of truck models, including Ford, Nissan, Toyota, Honda, and Dodge. Installation sheets are available for specific models and years to ensure accurate alignment and secure mounting. For example:
- Ford F150 (2021 model with 5.5’ bed): The installation is straightforward due to squared rails that allow for direct clamping without shimming.
- Nissan models (2004–2015 with Utili-Track and 2016+ models with or without Utili-Track): Alignment and clamping may require additional steps, and specific positioning sheets are provided.
- Toyota models (Tacoma and Tundra): The rails are designed for secure clamping, and the installation process is similar to other models.
- Dodge Rambox (2009–2018 and 2019 models): Special alignment considerations are included in the installation instructions.
If a truck bed liner is installed, it is recommended to install the BAKFlip cover before applying the liner. Spray-in bed liners should be less than 1/4” in thickness to ensure compatibility with the clamp-on mounting system.
Maintenance and Usage Tips
To ensure the longevity and performance of the BAKFlip MX4, it is essential to follow a few key maintenance and usage practices:
- Regular Inspection and Cleaning: Check the clamps and hardware periodically for tightness and wear. Clean the vinyl panels with soap and water only to avoid chemical damage. Inspect the drainage tubes for clogs and clear them as needed.
- Proper Parking and Storage: When parking, especially in areas prone to snow or debris, face the truck downhill with the cover closed to prevent accumulation. Avoid storing heavy items directly on the panels to prevent damage.
- Opening and Closing Precautions: When operating the cover in low-ceiling environments, such as garages or underpasses, open it slowly and carefully. When driving with the cover open, ensure side rails or bed caps are in place to protect the exposed panel edges.
- Fuel Efficiency and Aerodynamics: Independent testing and user reports suggest that BAKFlip covers can improve fuel efficiency by 2–8%, with an average of 1–3 miles per gallon. This is attributed to improved aerodynamics and reduced wind resistance, particularly at highway speeds.
- Periodic Removal and Reinstallation: The BAKFlip MX4 is designed for easy removal when full truck bed access is needed. Simply open the cover fully, release the clamps, and lift the cover upward from the front. Reinstalling is a quick process that takes only a few minutes.
Accessories for Enhanced Functionality
BAKFlip offers a range of accessories to enhance the utility and convenience of the MX4 tonneau cover:
- Rail Caps: These caps provide a finished look by covering exposed rail channels and protecting them from debris.
- Tie-Down Anchors: Secure cargo in place using anchor points on the cover.
- LED Lighting Kits: Improve visibility in low-light conditions by adding LED cargo lights.
- Crossbed Toolboxes: Maximize storage space by utilizing the area under the cover.
- Side Rail Kits: Protect the sides of the open cover from damage.
- Tonno Tent: Convert the truck bed into a comfortable sleeping area with the Tonno Tent accessory.
These accessories allow users to tailor the BAKFlip MX4 to their specific needs, whether for work, travel, or recreational use.
Conclusion
The BAKFlip MX4 is a versatile and durable tonneau cover that offers a balance of functionality, ease of installation, and aesthetic appeal. With a straightforward installation process and minimal maintenance requirements, it is an excellent choice for truck owners seeking to protect their cargo while maintaining the flexibility of an open bed. By following the manufacturer’s instructions and incorporating the recommended tips, users can ensure a smooth and trouble-free experience. Whether for daily commuting, weekend adventures, or professional use, the BAKFlip MX4 provides a reliable and adaptable solution.