Mustang Scott Drake Defroster Hoses with Cam-Locks (1965-1968) Installation Instructions

Tools Required:
  • Needle Nose Pliers
  • 3-4-inch Phillips Head Screw Driver
Install Difficulty:
  • Easy
  • Easy Project
1. To start the installation of you new Mustang Scott Drake C5ZZ-18556-A Defroster Hoses with Cam-Locks, remove the old defroster hoses from the two ports below the center console, to the left of the heater box and on top of the plenum box. Mine were stapled to the old plenum box, plus they had a wire around them.
Mustang Scott Drake Defroster Hoses with Cam-Locks Install Image
2. Remove the center speaker/defroster duct grill that is on the top and in the middle of the dash pad by removing the two Phillips screws that hold it down. If the windshield is installed, you will need to use a short (4-inch Phillips) screw driver. Carefully lift out the grill by using either a needle nose pliers or a flat head screw driver. It works best to lift a little on each end, being careful to not damage the grill cover.
Mustang Scott Drake Defroster Hoses with Cam-Locks Install Image
3. There are two clips that hold down the heater ducts. To remove the ducts, pinch the clips together using a needle nose pliers. The original ducts are a pressed cardboard and fall apart easily.
Mustang Scott Drake Defroster Hoses with Cam-Locks Install Image
Mustang Scott Drake Defroster Hoses with Cam-Locks Install Image
The new Scott Drake defroster hoses have a clamp that you press down and lock into place, once you place the new defroster hose on the duct. Feed the Mustang hoses down through the dash opening, down to the heater plenum box. Beware, there a few wires to work around.
4. Replace the Mustang defroster hose ducts and retaining clips, then reinstall the speaker/duct grill.
Mustang Scott Drake Defroster Hoses with Cam-Locks Install Image
5. Place the lower end of the defroster hoses on the plenum box ports and lock the clamps in place, which finishes the installation of your new Mustang Scott Drake Defroster Hoses with Cam-Locks.
Mustang Scott Drake Defroster Hoses with Cam-Locks Install Image