One of the most used parts of your foxbody Mustang is the inner door handle. After 20+ years of use the spring is pretty worn out and can make it a pain to open the door or can even break when going to open the door. At $9.99 a piece they are very affordable and very easy to install.
You'll want to start by removing the door panel. If you're like me and need to replace both the inner and outer handles you can take a look at this blog that will have the step by step on removing the door panels as well as replacing the outer door handles. You can see this blog by clicking here. 1979-1993 Outer Door Handle Install
Once you get the door panel off this is what you should see.
There will be one phillips head screw holding it into place that you'll need to take off.
Once you remove the screw you'll need to tap it with something towards the inside of the car to remove it from the channel it sits in. After that you'll see the lock rod that is in the tab. Turn the door handle so that you can remove the rod from the tab.
Here is the old door handle compared to the new door handle.
Slide the rod back onto the new door handle's tab and then push the handle back into the channel it sits in.
That's it and you're done! Now it's time to put everything back together. This would be the perfect time to replace any broken door panel push pins, door handle bezels, missing door panel moisture vapor barriers, sound deadener, and especially door lock actuators.
Now step back and look at your finished project!
See a full listing of all the Mustang inner door handle and bezel products we offer here. Mustang Inner Door Handle & Bezel