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1999-2004 Mustang Header Panel Repair Kit Installation Instructions

Created by Jude Horstman
Date Created: 7/19/2022
Last Updated: 2/9/2024

Over time the header panel in your Mustang can eventually crack or break from the weight of the bumper and headlights causing the bumper to sag. LMR has created this solution-based kit to restore header panel fitment to ensure a rock-solid mounting for your New Edge header panel.

Viewing this install and using the information shared is subject to the terms set forth here - View the LMR Install Instructions Disclaimer.

Over time, the header panel in your Mustang can eventually crack or break from the weight of the bumper and headlights causing the bumper to sag. LMR has created this solution-based kit to restore header panel fitment to ensure a rock-solid mounting for your New Edge header panel.


Tools Needed

  • Header Panel Repair Kit
  • 4mm Hex Socket
  • 11mm Box End Wrench
  • Drill and quarter-inch bit
  • Towels and a vaccum
  • Vice Grip

Installation Steps

  1. Before installing, you can prep and paint the header panel brackets as needed. Check out our channel's full review and installation video to learn more.

  2. How To Install 1999-2004 Mustang Header Panel Repair Kit - How To Install 1999-2004 Mustang Header Panel Repair Kit

  3. Begin by opening the hood and disconnecting the battery. You’ll then remove the (2) headlight retainers and carefully bring the headlight forward.

  4. How To Install 1999-2004 Mustang Header Panel Repair Kit - How To Install 1999-2004 Mustang Header Panel Repair Kit

  5. Disconnect the headlight and side marker bulb connection. Do the same for the other side.

  6. How To Install 1999-2004 Mustang Header Panel Repair Kit - How To Install 1999-2004 Mustang Header Panel Repair Kit

  7. Remove the (2) fasteners connecting the bumper pillars to the header panel.

  8. How To Install 1999-2004 Mustang Header Panel Repair Kit - How To Install 1999-2004 Mustang Header Panel Repair Kit

  9. Loosen and remove the (2) screws connecting the header panel to the core support.

  10. How To Install 1999-2004 Mustang Header Panel Repair Kit - How To Install 1999-2004 Mustang Header Panel Repair Kit

  11. Slide one of the lower, side-specific brackets into position and loosely install the previously removed hardware. Once everything is set, begin tightening the bracket until it is completely seated.

  12. How To Install 1999-2004 Mustang Header Panel Repair Kit - How To Install 1999-2004 Mustang Header Panel Repair Kit

  13. Gently lift the bumper pillar and slide the upper brackets in place.

  14. How To Install 1999-2004 Mustang Header Panel Repair Kit - How To Install 1999-2004 Mustang Header Panel Repair Kit

  15. Slide one of the provided bolts through the washers and feed the bolt through the bumper and bracket.

  16. How To Install 1999-2004 Mustang Header Panel Repair Kit - How To Install 1999-2004 Mustang Header Panel Repair Kit

  17. Thread on the nut and use an 11mm box end wrench and 4mm hex socket to tighten the hardware.

  18. How To Install 1999-2004 Mustang Header Panel Repair Kit - How To Install 1999-2004 Mustang Header Panel Repair Kit

  19. Use a pair of vice grips to clamp down the two brackets, so they are flat against the header panel. (Use a vacuum hose on the ends to protect it from being scratched.)

  20. How To Install 1999-2004 Mustang Header Panel Repair Kit - How To Install 1999-2004 Mustang Header Panel Repair Kit

  21. Drill a quarter-inch hole through the header panel and lower bracket.

  22. How To Install 1999-2004 Mustang Header Panel Repair Kit - How To Install 1999-2004 Mustang Header Panel Repair Kit

  23. Vacuum the debris and install the other bolt, washer, and nut. Fully tighten and then remove the vice grips. Repeat the same steps on the opposite side. You can then reinstall the headlights and reconnect the battery cable. After that, you’re all good to go.

  24. How To Install 1999-2004 Mustang Header Panel Repair Kit - How To Install 1999-2004 Mustang Header Panel Repair Kit



This install should only take about 30 minutes to an hour to complete. If you still need to fix your New Edge still and haven't ordered your kit, pick up the Header Repeair Kit! To see more how-to and install videos for New Edge Mustangs, be sure to head over to our YouTube and subscribe today!


As always, make sure to keep it here with the Real Mustang Enthusiasts at LMR.com.



About the Video

1999-2004 New Edge Mustang Header Panel Repair Kit - Review & Install

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

Published on 2022-07-06
Over time the header panel in your 1999-2004 New Edge Mustang can eventually crack or break from the weight of the bumper and headlights causing the bumper to sag. LMR has created this solution-based kit to restore header panel fitment to ensure a rock-solid mounting for your New Edge header panel.

Arriving in a bright, aluminum finish, the brackets will surely increase the header panel's rigidity for years to come. To provide a complete restoration solution and eliminate all guesswork, LMR includes retaining hardware for a simple installation into the exterior of your New Edge!

The brackets come in a bare finish. Painting before installation is recommended. You can check out our selection in the link below.
Thumbnail image of the author of this article, Jude Horstman.

About the Author

Jude is our Social Media Specialist and has written for Late Model Restoration for 4 years. Jude has a deep passion for automotive culture, including cars, trucks, and motorcycles. Read more...