For this project you will need the following:
- wire snips/strippers
- soldering iron
- replacement jack
Step 1: Cut the End Off Your Headphones.
Yep. No turning back now - just go for it. Then use your wire strippers to remove the wire casing around the cord. My headphones had coated wires within the main cord housing, if your headphones are like that too, you will have to strip down enough insulation to wire to solder the new jack into place.
Step 2: The Fix.
Disassemble your new headphones jack and thread the housing onto the existing headphone cord (see images)
I used a 'helping hands' clamp tool to hold the new jack in place while I threaded the three wires into place. With the archaic set of headphones I was using, it didn't particularly matter which wire was fed into each pin - I tried all possible configurations, I put the white wire in the long pin, and the red and black wires in the smaller pins. Gingerly, heat each pin, and solder into place.