1955-1959 GMC & Chevy Truck — Right Side
Fitting 1955-59 power windows is a one-door-at-a-time job, and the glass still runs in the factory channel afterwards. Our kit for 1955-59 Task Force doors replaces the crank regulator in a Task Force door with an electric regulator and motor. The photo below shows the mounting position, and the steps under it cover the harness. First, mount the regulator. Then run the wire through the hinge, and use the wiring notes before the door panel goes back on.
Tools you will need
- Door panel removal tool and basic hand tools
- Drill with a 5/32″ bit and a 10-32 tap for the harness clip
- 7/8″ hole saw or step bit for the kick panel grommet
- Wire strippers, crimps and a test light or multimeter
1955-59 power windows mounting position
Running the Wire Harness Through the Door
- First, locate the mounting point. Find the face side of the lower door hinge.
- Drill and tap. Drill and tap a hole for a #10 screw (use a 5/32″ drill bit and 10-32 tap).
- Secure the wire. Hold the wire in place with a nylon Adel clip using the #10 screw.
- Finally, route into the cab. Drill a 7/8″ hole at the top of the kick panel under the dash and install a rubber grommet for wire travel.
Wiring and switch tips
- First, disconnect the battery before any wire goes into the door.
- Bench test each motor on the truck battery before the regulator goes in. It is far easier to swap a motor on the bench than inside a door.
- Fuse the circuit at the source. A 20 amp fuse covers a pair of power window motors on most kits.
- Finally, test the switches before the door panel goes back on. If a window runs the wrong way, swap the two motor wires at the switch.
1955-59 power windows fitment notes
Every one of these doors has a different history, so expect to trim a bracket or move a hole once in a while. Also, run the glass up and down by hand before the motor is connected, because a stiff channel will stall a motor that is otherwise fine. New felt run channels make a bigger difference than most people expect.
Power windows are one of the more common Task Force upgrades. If you are not sure which year your cab is, our Chevy truck VIN decoder reads the serial plate. Bead rolled firewalls, Altman door latches and billet interior hardware for the same cab are in our 55-59 truck parts collection.
For any questions or concerns with your install, don’t hesitate to email us at info@lsfab.com
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