How to Install a RetraxONE MX Tonneau Cover: Step‑by‑Step Guide
Why Choose RetraxONE MX?
The RetraxONE MX offers great value at $1,200–$1,800 with a 5–10 year lifespan, ideal for daily drivers seeking style on short or standard beds like F-150 or Silverado 1500.
It provides basic security and weather protection without breaking the bank perfect if your budget is under $2,500.
Pair it with T-slot accessories only if needed, as MX models prioritize affordability over heavy-duty racks.
Tools and Prep Needed
Gather these basics: socket wrench set (10mm-13mm), drill with metal bits, torque wrench, ladder or step stool, and safety gloves.
Park on a flat surface; ensure bed is clean and clamps from your Retrax kit are ready.
Unbox the RetraxONE MX carefully check for your truck’s bed size (short: 5’7″-5’9″; standard: 6’6″).
Step 1: Remove Tailgate Components
Loosen tailgate handle screws and support rods using a 10mm socket don’t fully remove yet.
Slide the cover’s tailgate bracket into place behind the handle, then retighten to 10 ft-lbs.
This secures the rear rail without drilling into your bed.
Step 2: Install Side Rails
Position side rails along bed sides, aligning with pre-marked holes .
Clamp rails loosely first, then drill 1/4″ holes per instructions add self-tapping screws for a firm hold.
Torque to spec (typically 15-20 ft-lbs) for MX models on F-150 or Ram 1500.
Step 3: Mount the Retractable Cover
Lift the RetraxONE MX onto rails with a helper align front brackets precisely.
Secure with bolts hand-tight, then torque to 10-12 ft-lbs; test retraction smoothly.
Avoid over-tightening to prevent track binding.
Step 4: Final Checks and Test
Cycle the cover 5-10 times to ensure smooth operation and no gaps.
Seal edges with provided weatherstrip if needed; latch securely at the tailgate.
Load test with light weight your Retrax bed cover is now ready for daily use.
Common Fitments
Troubleshooting Tips
If retraction sticks, check rail alignment or debris lube tracks lightly with silicone spray.
For heavy loads, upgrade to RetraxPRO XR; MX suits work trucks less intensely.
Contact Retrax support for warranty claims on electronics-free models.

