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2023-2025
Ford Super Duty
Rear BumperShellz™ Installation Guide

​Predicted Installation Time: 25 minutes

Items Included

  • Side Covers: 2
  • Pre-Installed 3M tape
  • Adhesion Promoter Packets: 1​

Tools Required

• Isopropyl Alcohol/clean rags
• Plastic (non-scratch) pry tool
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Before You Get Started...

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Warm surfaces and 3M tape with heat gun if ambient temperature is below 68 degrees F
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Any Modification or unintended use will void the manufacturers warranty
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A dry fit of all pieces must be performed before the final installation of the product to ensure fit
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Products cannot be returned for a full refund after the red backing to the 3M tape is removed

Paint Preparation Instructions Link

If you ordered the "Paintable" version, click on the instructions link above for paint prep, and trim installation instructions.

Preparation

The degree to which you follow these preparation instructions will determine the quality of the installed product.  Please follow all instructions and be patient.  If you are unsure of any area of the installation after reading these instructions, please call us at 844-918-3688, and we will answer any questions that you have.

Installation

NOTE: Dry-Fit all BumperShellz pieces to their specific locations BEFORE removing ANY of the red backing strips from the tape. Make sure all pieces are correct, i.e., you have received all pieces shown above, color/pattern is correct, and that all are undamaged. If you ordered a custom painted part, check the color match of the part to the body of the truck. There should not be any (or extremely minimal) bumper surface visible once the bumper cover is placed on the bumper. Dry Fitting is also good practice for lining up each piece and guiding it into place, visualizing how to do it when the backing strips are removed, and the tape is STICKY. Note that once the backing is removed, we cannot give full credit for return.
1. Clean the bumper surface using a clean cloth and Isopropyl alcohol to remove dirt and soap residue.
2. Remove the red backing to the tape near the sensor hole (if present), along with the sections of tape near the tail end of the cover as it wraps around the bumper. Peel and tape the portions of tape on the underside of the cover to the front surface for access later.  (View in Fig. 2) This ensures that tape does not adhere until the cover is positioned. View the technique in Fig. 1
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3. Use the adhesion promoter included with your instructions on the areas where the 3M tape will be touching down.  Read the instructions on the adhesion promoter to learn how to activate it. If your Shellz include a protective film, now would be the time to peel the film away from the top edges of the cover to prevent it from getting caught beneath the step pad after installation.
4. Begin installing the overlay by using your trim tool to create room for the inside edge of the overlay to slip under the plastic trim. Begin on the inside edge nearest the license plate. Once the edge is started, slide the cover over and up.
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5. Continue slipping the top edge under the step pad working your way from the inside, outward.
6. There may be other locations (including around the next geometry change where you may want to use your trim tool again to allow the cover to slip more easily underneath the trim.
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7. As you continue, be sure the 3M tape does not touch down until your overlay is properly positioned.  This is especially critical if you have parking sensors.  Ensure the sensor hole is centered around the parking sensor bezel before attaching the tape.
8. Work your way around the side of the bumper and use your trim tool again to assist in tucking the upper edge of the cover underneath the step pad.
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9. Once you are satisfied with the position, and that chrome is concealed, especially around the edge of the bumper step trim, you can begin putting pressure on the exposed areas of 3M tape.
10. Remember to peel the red backing tabs to the 3M tape you adhered to the surface in step 2 located on the underside of your bumper.
11. Repeat the process on the opposite side of the truck.
12.  All the sections of the BumperShellz should now be fully installed.  Put firm pressure once again on all areas where the 3M tape is contacting the bumper to ensure proper adhesion. 
​13.  Wait 48 hours before taking your vehicle through automated car washes or driving on the highway.  Reapply pressure to all taped areas 24 hours after the initial installation.
NOTE for Maximum Adhesion: The acrylic foam tape used to adhere your BumperShellz is “pressure sensitive”, so making sure there is sufficient pressure applied to each of the taped areas is vital to achieve optimum adhesion of your BumperShellz™ to your bumper.  It is also recommended that you come back a few hours later, or the next day, to give each BumperShellz piece another pressure rub to ensure the best adhesion. Allow the tape adhesive to set up for at least 24 hours before washing your truck. Maximum adhesion is reached after 3-5 days in temperatures above 70 degrees, longer if it is cooler. Once the adhesive has fully bonded to a properly prepared bumper surface, it is nearly impossible to remove the BumperShellz without damaging them. Please refer to “removal instructions” in the BumperShellz FAQ section on the website, should removal be necessary.

Care for your BumperShellz™

Care for your BumperShellz™ like you would any fine paint finish.   Use high quality cleaning products designed specifically for car care.

Gloss finishes: Oftentimes, minor scratches can be buffed out on the gloss finishes.  Rubbing compounds can be used with a mechanical buffer, for deeper scratches.
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Matte finishes are much more susceptible to abrasions, leaving a "glossy sheen" on the finish, which are generally permanent.  Do not attempt to buff out scratches/abrasions on your matte finish, as this will generally make the damage worse.  Avoid excessive friction when trying to remove anything stuck to the matte finish surface and keep cleaning rags/water clean and abrasive free.  Abrasive brush-type car washes are not recommended, as they can abrade the Matte finish.  Brushless car washes are acceptable.

    Show off your truck, WIN a GAPSHIELD

    Send us your Before and After Pictures!  We will show off your truck to the world.  Plus, one winner will be randomly selected each month to receive a free GapShield!  If you'd like us to tag you on Instagram, please include your profile name.
    Max file size: 20MB
    Max file size: 20MB
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3860 Cincinnati Ave 
Rocklin , CA 95765
  • Home
  • Products
    • GapShield
    • AeroBox
    • BumperShellz
  • SALE ITEMS
  • New Model Request
    • 2024+F150 Early Interest Form
  • Become A Dealer
  • Contact Us
  • Installation Instructions Home
    • FORD MODEL YEAR SELECT
    • CHEVROLET MODEL YEAR SELECT >
      • 2007-2013 Silverado Installation Home
      • 2014-2015 Silverado Installation Home
      • 2016-2018 Silverado Installation Instructions Home
      • 2019-2021 Installation Home >
        • 2019-2021 Front Bumper Installation Home
      • 2023-2024 Installation Home >
        • 2023-2024 Front Bumper Installation Home
        • 2023-2024 Silverado Grille Installation Home
    • GMC MODEL YEAR SELECT >
      • 2007-2013 GMC Sierra Installations Home
      • 2014-2015 Sierra Installation Home
      • 2016-2018 Sierra Installation Home
      • 2019-2024 Sierra Installation Home
    • RAM MODEL YEAR SELECT >
      • 2009-2012 RAM Installation Configuration
      • 2013-2018 RAM Installation Configuration
    • TOYOTA MODEL YEAR SELECT >
      • Tundra Installation Configuration >
        • Tundra Installation Version Selector Page
  • Acrylic vs. Painted-to-Order
  • Painted Parts Policy
  • Paintable ABS Disclaimer
  • Toyota Tacoma New Product
  • Product Overview
  • News