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rear window motor fix

warrpath4x4

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I seen this on pirate and had to share it.

"I replaced all of the weather stripping and Dad rebuilt my wing windows with all new seals. I'm glad he elected to tackle that project because it looked like a pita.

I found that there were 2 wing window designs used from 81-85. One is a 1 piece wing window seal and the other is a 2 piece design. LMC only lists and sells the 1 piece design so I had to return those but was able to find the 2 piece design at Classic Chevy in my hometown of Moore, Oklahoma.

I also took this opportunity to clean and re grease the window regulators and replace the window motors with new units by Cardone. The new units work much better than the reman in my opinion by the way.

Since they don't offer a new replacement rear window motor, I bought a reman to the tune of like $120. Got it installed and found that it barely had enough balls to lift the window even without the new seals in the track. I took it back and swapped it out thinking I had received a junk motor the first time. Same result, except this one also sound like it had gravel in it.

So this whole time I've been working on this window I've been using a 12 volt electric drill to run the window up and down in the track. It runs it perfectly smooth and at a rate of speed I'd accept. So I got to thinking what would it take to make a drill motor fit into the place of the original motor. I bought a Rigid drill from Home Depot for $99, 2- 5 terminal relays and relay sockets from O'reillys and the end result is a bad ass rear window motor that works off the factory dash switch and rear lock cylinder like it did from the factory. It's a little redneck but it works like a champ!!!"

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The new seals from LMC are pretty rough on the insides, that felt like material made my drivers and passenger windows not want to roll up for the first few weeks, until the window wore them in enough.
 
That's pretty cool. I've found that mine goes up really slow, but down fast. Pretty sure that clockspring on the regulator is worn out and lost it's springiness. Tried clocking mine, but the coils started to bind. So going to try a new regulator w/ a new spring in there. If that doesn't work I may copy that design.
 
So how does the direction change work? I like it, in fact I had that exact drill until it was stolen a few years back.
 
How exactly did you wire this? Looking at the wiring in the truck, both wires are pos one ea for up or down. And it appears to be grounding via the body. Is the motor in that 3 wire also? Considering doing something like this myself as the reman motor is less than stellar.
 
So how does the direction change work? I like it, in fact I had that exact drill until it was stolen a few years back.

sorry I didn't respond to this sooner. Its not my truck so I am only guessing that just like the drill has a direction selector he is sending power to forward and then power to reverse by way of the up and down switch
 
edited: You can do the wiring using 2x 5-way relays. running the (+)switch1 to one of the 87a's and ground to the other. Should pass right through plug 30. Use the (+)switch2 to the 85 on both to kick them both over when energized and allow 87 to pass through which would be wired opposite the 87a's.
 
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Has anyone else done this? I want to do it but I’m a little electrical challenged. I can hook up wiring but when it comes to using relays I don’t know what to do. Anyone have step by step instructions to do this? Thank you.
 
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