Fitting 1967-72 power windows is a one-door-at-a-time job, and the glass still runs in the factory channel afterwards. Our kit for 1967-72 C10 doors replaces the crank regulator in a C10 door with an electric regulator and motor. The diagram below shows the mounting position, and the Nu-Crank switches let you keep the factory crank handle as the switch. First, mount the regulator. Then fit the switch, and use the wiring notes before the door panel goes back on.
1967-72 power windows kit mounting
1967-1972 GMC Chevy Truck Right Side:
Installing Nu-Crank Switches in 1967-1972 GMC Chevy Truck
1. First, locate the center of the crank stem.
2. Using the Nu-Crank backing plate, mark the crank stem center and transfer punch the 3 outside holes with a 13/64″ punch.
3. Bolt the switch in. Run the screws from the inside of the door out with a short Phillips screwdriver. On the lower mounting hole you will need a 1/8″ shim to get the crank stem positioned correctly.
4. Finally, install the power window regulator, replace the panel and attach the crank handle to the Nu-Crank switch.
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
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.
- Route the harness through the hinge side with a grommet, and leave enough slack for the door to open fully without pulling on the wire.
- 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.
1967-72 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. If you are not sure which year your cab is, our Chevy truck VIN decoder reads the serial plate and tells you. The rest of the door hardware for the same cab is in our 67-72 C10 truck parts collection.
Working through the rest of the cab? Our 67-72 C10 truck parts collection covers the bead rolled interior panels, door hardware and tailgate parts that go in alongside a power window conversion.
For any questions or concerns with your install, don’t hesitate to email us at info@lsfab.com
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