The 1967 Ford Mustang was equipped with a pair of mechanically operated door lock cylinders. The lock cylinders are of a fairly simple design and operate primarily of a number of tumblers actuated by a key. Over time, the internal components tend to wear, and operating the lock can progressively become more difficult. If the door lock is still in good condition but the key has been lost, a replacement key can be made from the code stamped onto the door lock. Whether replacing the lock or a lost key, the door lock must first be removed.
Tools Used: Deep-set socket wrench, Screwdriver
Install Door Locks
Removing the Old Door Lock
Roll the window up then open the door you will be removing the lock from.
Remove the two bolts that secure the armrest with a deep-set socket wrench then detach the armrest from the door.
Take off the screw that secures the bottom of the interior window handle to the door with a screwdriver then detach the handle from the door.
Remove the screw that secures the bottom of the interior door handle to the door with the screwdriver then detach the handle from the door.
Pry the door panel off of the door with the screwdriver.
Reach through the interior of the door to access the door lock.
Pry off the small circular clip that secures the door lock control rod to the back of the door with the screwdriver.
Hold the exterior of the lock against the door then pull the U-shaped clip off of the bottom of the interior side of the door lock.
Pull the door lock out of the exterior of the door.
Installing the New Door Lock
Slide the new door lock through the exterior of the door.
Press the U-shaped clip onto the bottom of the interior side of the door lock to secure the lock in place.
Insert the tip of the door lock control rod through the small circle on the back of the door lock.
Press the small circular clip into the groove cut into the tip of the control rod to secure the rod in place.
Align each of the clips on the back of the door panel with their respective holes on the door frame then press each clip into its hole.
Position the interior window and door handles onto their gears on the door then reinstall each handle's securing screw with the screwdriver.
Position the armrest into place against the door panel then reinstall the armrest's securing bolts with the deep-set socket wrench.
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