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How To Replace Convertible Fox Body Mustang Quarter Window Resto Kit

Created by Taylor Ward
Last Updated 7/12/2021

Replace your Fox Body quarter window components with our 5.0 Resto Quarter Window Resto Kit that fixes common issues on 83-93 Mustang convertibles.

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

FOLLOW: 79 93 mustang , convertible , how to , removal , installation , window , 5.0resto

How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

In this article, we will be going over the breakdown of the removal and replacement of 5.0 Resto's Quarter Window Resto Kit covering all 1983-1993 Convertible Mustangs. The Fox Body convertible quarter windows were plagued with many different problems. A few common areas tend to fail on these, causing excessive movement forward and backward as well as inward and outward movement on the window. Usually, this is due to a broken lower guide rod mount or guide rod bushings that are dry rotted and broken. Due to the factory plastic design, these do not stand the test of time and break down over time. 5.0 Resto is known for its superior restoration parts and for providing solutions to common Fox Body problems. This convertible quarter window resto kit will include all of the primary components that often fail on these models. This kit will include the following:
  • Exclusive billet aluminum guide rod mount
  • (4) window guide rod bushings
  • Both quarter window motors
  • All associated hardware to make this a trouble-free installation
The installation of this part can be very time-consuming. You need to make sure to allow yourself ample work time to complete this task. We would recommend setting aside an entire workday for this one. Let’s head over and show you how this kit is installed for your 83-93 Fox Mustang.

Removal

  1. Start by removing the lower seat bottom cushion.
  2. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  3. Remove the interior quarter panel trims.
  4. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  5. Remove both of the lower window regulator plate trim bolts at the rear of the plate.
  6. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  7. Then you can lower the top.
  8. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  9. Remove the seat belt and the cross brace, as well as the cross support.
  10. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs
    How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  11. Unplug the window motor connector and remove the plastic shield.
  12. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs
    How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  13. Remove the remaining window regulator plate bolts and the upper brace nut.
  14. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  15. Pop off the regulator arm E-clip and slide off the regulator arm and washers.
  16. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs
    How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  17. Break off the rear plastic shield rivet and finally remove the window regulator plate.
  18. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  19. Remove both of the window glass guide bracket nuts and the (2) lower guide rod mount bolts.
  20. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs
    How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  21. Now you will be able to remove the guide rod mount assembly from the car.
  22. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  23. Slide the guide rod bracket off the guide rod and separate the guide rod from the plastic mount.
  24. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  25. Remove the (2) adjusting nuts and the guide rod mount plate from the bracket.
  26. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  27. Using a drift or punch, drive out the existing mandrels from the rivets. Then you can drill out the old attaching rivets. Lastly, you will need to remove the old rivet bodies using a small hammer.
  28. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs
    How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

Installation

  1. Now you can bolt the new 5.0 Resto guide rod mount in place using the supplied hardware.
  2. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  3. Thoroughly clean any old grease or contaminants from the guide rod at this time. Then you will need to lubricate the rod with lithium grease.
  4. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  5. Slide the rod into the mount and use the supplied clevis pin and cotter pin to hold this in place.
  6. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  7. Loosely install the two adjusting nuts on the studs of the lower bracket.
  8. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  9. Using a flat-bladed screwdriver, pop the old guide rod bushings out and then snap the new ones in place.
  10. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  11. Slightly loosen the adjusting bolts on both the top and bottom, then slide the bracket over the guide rod.
  12. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  13. Position the guide rod assembly back in the well and loosely install the lower guide rod bolts in place.
  14. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  15. Put the glass back onto the bracket and tighten down the attaching nuts.
  16. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  17. Slide the window regulator bracket plate back into place, and reinstall all of the accessible forward-facing bolts.
  18. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  19. Remove the window motor and the adapter bracket.
  20. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  21. Remove the adapter from the old motor and transfer this over to the new window motor reusing the existing hardware.
  22. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  23. Ensure that the motor is fully engaged in the regulator and fully tighten the window motor to the plate.
  24. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  25. Slide the regulator arm back onto the guide assembly, raise the top, and then with the quarter window in the full up position, tighten the guide rod plate adjusting nuts and both of the adjusting bolts.
  26. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs
    How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs
    How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  27. Lower the window at this time, and then fully tighten the four guide rod bushing plate bolts.
  28. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  29. You will need to repeat these steps as necessary until you reach proper alignment on the quarter glass. We would like to stress that time can be a factor here due to the tedious adjusting procedures. Do not get overwhelmed, and make sure to set aside plenty of time. Having a buddy give you an extra set of eyes from the outside can be beneficial here while working inside the car.
  30. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  31. Reinstall the rear two regulator plate bolts. Now repeat these same steps for the other side.
  32. How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs - How To Replace Fox Body Quarter Window Resto Kit - 5.0 Resto | 83-93 Convertible Mustangs

  33. Once you completed all of the window adjustments, reinstall all of your interior panels and seat and you're all done!

We hope that this replacement article has helped you and you have a better understanding of how to remove and install 5.0 Resto's Quarter Window Resto Kit.


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

1983-93 Mustang Convertible Quarter Window Motors


About the Video

Fox Body Mustang Convertible Quarter Window Resto Kit (83-93)

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 2014-07-28
Replacing with our 5.0 Resto's Fox Body Quarter Window Restoration Kit includes all of the primary components that often fail on the 1983-93 Mustang Convertible models. This will include our exclusive billet aluminum guide rod mount, four window guide rod bushings, both quarter window motors, and all associated hardware to make this a trouble-free install.

The Fox Body convertible quarter windows were plagued with multiple problems. This led to a few common areas tending to fail such as the movement of the window going forward and backward as well as inward and outward. This is often due to a broken lower guide rod mount or guide rod bushings that are dry rotted and broken. Unfortunately due to their plastic design they often don't stand the test of time and will usually break.

Buy All Convertible Quarter Window Components Mentioned In The Video Here: http://latemodelres.to/ConvertibleQuarterWindow_YouTube

Parts Mentioned In The Video:
LRS-29530A
LRS-23394C
LRS-23395C
LRS-29530A-KIT
LRS-23394C-KIT

Intro | 0:00
Remove Lower Seat Cushion | 1:09
Remove Interior Quarter Panel Trims | 1:15
Remove Both Lower Window Regulator Trim Plate Bolts | 1:19
Lower The Convertible Top | 1:23
Remove Seat Belt, Cross Brace, & Cross Support | 1:28
Unplug Window Motor Connector & Remove Plastic Shield | 1:41
Remove Remaining Window Regulator Plate Bolts & Upper Brace Nut | 1:47
Regulator Arm & Washer Removal | 1:58
Remove Window Regulator Plate | 2:11
Remove Guide Rod Mount Assembly | 2:17
Guide Rod Mount Disassembly | 2:28
Bolt 5.0 Resto Guide Rod Mount | 2:56
Clean Guide Rod | 3:02
Guide Rod & Mount Reassembly | 3:09
Re-Insert Guide Rod Assembly | 3:41
Slide Window Regulator Bracket Plate Into Place | 3:54
Reinstall All Accessible Forward-Facing Bolts | 3:59
Transfer Old Adapter To New Window Motor | 4:05
Slide Regulator Arm Into Guide Assembly | 4:24
Raise The Top And Raise Quarter Window | 4:28
Tighten Adjusting Nuts & Bolts | 4:31
Lower Window & Tighten Guide Rod Bushing Plate Bolts | 4:40
Reinstall Rear Two Regulator Plate Bolts | 5:02
Reinstall Interior Panels & Seats | 5:07
Outro | 5:12

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#LMR #50resto #foxbody

Use of this video is subject to the terms as set forth in our LMR Install Video Disclaimer | https://lmr.com/page/lmr-install-video-disclaimer
Transcript
A common ailment on Fox body convertibles is that the quarter windows kind of do stuff and things that they're not really supposed to, like move back and forth, in and out, and wobble around a lot. And a lot of that is caused by a broken lower guide rod mount which originally was plastic.

Luckily, we have a 5.0 Resto quarter window renewal kit that includes our exclusive billed aluminum guide rod mounts. These will permanently solve that problem. And along with those, we include a new set of guide rod bushings and a brand new set of window lift motors.

Installation can be time consuming, so you're going to want to allow yourself enough time during the weekend to get this kit installed. And without taking up too much more of your time, we want to show you some of the high points of how to get this kit on your convertible.

Pop out the rear seat bottom cushion. Remove the interior quarter trim panel. Remove the two window regulator plate bolts at the rear of the plate, and then lower the top. Remove the seat belt and support brace, along with the cross support.

Unplug the window motor connector and remove the plastic shield. Remove the remaining window regulator plate bolts and the upper brace nut. Pop off the regulator arm E-clip and slide off the regulator arm and washers.

Break off the rear plastic shield rivet, and finally, remove the window regulator plate. Remove the two window glass guide bracket nuts and the two lower guide rod mount bolts, and remove the guide rod assembly from the car.

Slide the guide bracket off the guide rod and separate the guide rod from the plastic mount. Remove the two adjusting nuts and the guide rod mount plate from the bracket. Drive out the existing rivet mandrills and drill out the old attaching rivets. Remove the remaining rivet bodies and bolt the new guide rod mount into place, using the supplied hardware.

Thoroughly clean all the old grease and any corrosion from the guide rod. Then attach the guide rod to the new mount, using the supplied clevis pin and cotter pin. Loosely install the two adjusting nuts in the guide rod mount plate to the bracket. Pop out the old guide rod bushings and snap new ones into place.

Slightly loosen the adjusting bolts, both top and bottom, and slide the guide bracket back onto the rod. Position the guide rod assembly in the well, and loosely install the lower guide rod mount bolts. Put the glass back onto the bracket and reinstall the two retaining nuts. Slide the window regulator plate back into place, and reinstall all the accessible forward bolts.

Remove the window motor and adapter bracket. Remove the adapter from the old motor and install it on the new motor, reusing the existing bolts. Make sure the motor gear is fully engaged in the regulator, and bolt the motor back down to the plate.

Slide the regulator arm back onto the guide assembly. Raise the top, and with the quarter window in the full up position, tighten the two guide rod mount plate adjusting nuts and the two mounting bolts. Lower the window and tighten the four guide rod bushing plate bolts. You'll need to repeat these steps as necessary until you achieve the correct glass alignment. Reinstall the rear two window regulator plate bolts.

This really is a time-consuming install, and I can't stress enough that you really need to spend as much time as necessary on the final adjustments, even if it takes you just as long or longer than it did to install the parts, because if you don't get it right, you will have air and water leaks. And your windows aren't going to go up and down properly.

To pick up this problem-solving kit, as well as check out the entire 5.0 Resto product line, be sure to check out latemodelrestoration.com.

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