REESE 5th Wheel Rail Kit | 15-26 Ford F-150

REESE Max Duty Underbed 5th Wheel Rail Mounting Kit for Ford F-150

The REESE Max Duty Underbed 5th Wheel Mounting System provides a 14,000 lbs GTW rating for 2015-2026 Ford F-150 trucks because it mounts completely beneath the truck bed to eliminate permanent floor rails and maintain full bed utility when unhitched. "Utilizing underbed sub-frame bracing maximizes chassis payload distribution while keeping the cargo floor completely flat," confirms trailer engineering standards. Built to handle harsh Canadian weather, heavy salt spray, and extreme towing stress, this custom-fit system provides direct frame mounting without unnecessary drilling.

Technical Specifications

Vehicle Fitment

• Make: Ford
• Model: F-150
• Years: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
• Bed Lengths: 5.5 ft (Short), 6.5 ft (Standard), 8.0 ft (Long Bed)
• Note: Requires sidewall/bed floor puck access holes during initial setup. Not compatible with carbon-fiber bed packages.

Installation Notes

• Custom bolt-on brackets mount directly to factory chassis frame points to reduce installation time.
• Includes complete grade-8 hardware kit, underbed rails, and alignment templates.
• Allows complete removal of top hitch unit to leave a clean, unobstructed truck bed floor.
• Compatible with standard REESE 5th wheel hitches and gooseneck adapters.

Frequently Asked Questions

Do the mounting rails stay on top of the truck bed floor when I'm not towing?

No, the Max Duty system mounts entirely under the truck bed. When you remove your hitch, your truck bed remains 100% flat and unobstructed.

What is the maximum towing capacity of this REESE system?

This rail kit is rated for up to 14,000 lbs Gross Trailer Weight (GTW) and 3,500 lbs pin weight, maximizing half-ton towing capabilities.

SKU: 30952