How to Install a RetraxONE MX Tonneau Cover: Step‑by‑Step Guide

retrax bed cover

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

Bed Length Compatible Trucks
Short (5’7″-5’9″) F-150, Silverado 1500, Ram 1500
Standard (6’6″) F-150, Silverado 1500, Sierra 1500
Long (8′) F-250/350, Silverado 2500/3500

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.

Quick Decision Guide

Need Best Retrax Model
T-slot accessories XR
Budget under $2,500 MX
Basic security/weather MX
Overlanding/racks XR
Learn more

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