Mustang Dynacorn Quarter Window Regulator (1965-1967) Installation Instructions

Tools Required:
  • Phillips Head Screw Driver
  • 1/16-inch Allen Wrench
  • Ratchet Set
Install Difficulty:
  • Moderate
  • Moderate Project
1. Start the installation of your new Mustang Dynacorn M3698 Quarter Window Regulator by removing the door sill plate by removing the seven screws. Also remove the windlace along the door frame.
2. Remove the upper part of the rear Mustang seats by lifting upward, which lifts it off of the retaining hooks.
Mustang Dynacorn Quarter Window Regulator Install Image
3. Remove the lower portion of the rear seat by lifting up on the front end of the seat to remove off of the retaining latch.
4. Remove the five screws holding the rear panel in place.
5. Remove the Mustang quarter window handle by using a 1/16-inch Allen wrench.
Mustang Dynacorn Quarter Window Regulator Install Image
6. The Mustang quarter trim panel will now lift out and there may be a dust shield you will need to remove also to access the bolts holding the regulator in place. You will have to slightly lift up and out to remove the panel as it is “hanging” on the window opening.
Mustang Dynacorn Quarter Window Regulator Install Image
7. You may need to use some tape to hold the window up when you remove the regulator. Unbolt the five bolts holding the regulator in place. The middle bolt on the right has a flange on the interior of the panel that the bolt attaches to that will fall off when the bolt is removed.
Mustang Dynacorn Quarter Window Regulator Install Image
The sixth bolt holds the track for the regulator arm in place.
Mustang Dynacorn Quarter Window Regulator Install Image
8. Reach up from the lower opening of the panel to remove the regulator. You will need to slide the arm and roller out of the top end of the lower track and the right side of the window track for the passenger Mustang window components. You may have to temporarily put the handle on the widow regulator and roll it down/up to manipulate the roller out of the track.
Mustang Dynacorn Quarter Window Regulator Install Image
9. Place the new Dynacorn regulator up inside the panel and attach the bolts in place. Again roll the window up/down to get the arm/rollers into the appropriate tracks.
Mustang Dynacorn Quarter Window Regulator Install Image
Mustang Dynacorn Quarter Window Regulator Install Image
10. Place some grease inside the window tracks.
Mustang Dynacorn Quarter Window Regulator Install Image
11. Reinstall the rear panel and dust shield, window handle, sill plate and rear seat, which finishes the installation of your new Mustang Dynacorn Quarter Window Regulator