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| I've had several requests for information, so I took some pictures, added some text, & put up this web page. I used the SPAL part # 33000031 motor kit, & their 33040121 switch kit. They have very complete & easy to understand instructions included. Here's a link to SPAL: |
| POWER WINDOWS IN A 72 CHEVY VEGA |
| I used 16 gauge Monster brand 4 conductor wiring cable in the door jam, available from Parts Express. The part # I used was #100-652. (Parts Express part #) it costs .69 per foot, & I bought 20 feet. (they do have 14 gauge 4 conductor available, but the 16 gauge has worked fine) The reason for 4 conductor is in case you want to run power door locks later. You see 2 wiring bundles in my door jam, because in addition to the power windows, I also have power locks & speakers mounted in the doors. The cable is white, but I sprayed the section that shows in the door jam with some Krylon semi-flat black. Make sure you use appropriate sized rubber grommets where the wiring cable goes thru the door & jam. Here's a link to Parts Express: |
| Make sure to use relays, (you will need 4 of them) and do not power the motors directly from the switches. (Do a Google search on power door lock relay wiring diagram ). (The diagram will be the same as for power windows), just remember you have to do 2 sets of relays, 1 set for each window motor. I am not an electrician, but relay wiring is pretty easy. Here's a link that shows how to wire up relays. (scroll to the bottom of their page for the wiring diagram). |
| I did have to notch out a bit of the inner door to make a pathway for the driving cable to get it up to the window crank area. The motor itself is installed behind the inner door structure. Make sure all the moving parts on your window regulators are cleaned good of the old dried up grease & crud, and re-lube with white lithium grease from a spray can. |
| The SPAL kit provides caps to cover the window crank hole in the door panel, and if your interior is not black, just spray to match your color. My door panels are the flat 'cardboard' covered with upholstery, but this kit should work with the 'molded' door panels just as well. I am very pleased with the results. I put my switches in my center console, (liberated from a Monza) and the only thing that shows on the door panels is the plastic caps over the window crank holes. The door panels fit just as well as before the installation, and they don't bulge out. |
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