Electric Window Replacement

[Ormly]

Anyone know how to replace an electric motor on an 86 1/2 ton. It looks almost impossible for anyone without a formal GMC classroom education.

Thanks.

[swervin ervin]

See if this will help you any.

http://www.73-87.com/7387garage/interior/winmotor.htm

[old Rusty C10]

its been a while since i did one but if i remember correct they are riveted on originally and you have to cut the rivets out and replace with nuts and bolts.... that being said let me say you have one heckuva nice truck there

[piecesparts]

I have replaced a couple motors in the mid eighties trucks and there were no rivets in the ones that I did on the trucks. I used the cheap metal strapping that you can buy at any hardware store (the kind that you hang gas piping under houses with) to hold the window up while I took out the motor and regulator assembly. The window needs to be all the way up to do this and thne make a hook out of the metal and screw it to the sheetmetal on the door's inside, make sure you drill and screw below the door panel so it is covered when everything is re-installed. Then take the motor and regulator loose from the truck door and feed it out of the holes in the door panel.

Once the whole assembly is out, the most important thing you have to do now is drill a hole through the big gear assmbly and the frame that holds the regualtor assembly together. Drill a 1/4" hole and put a bolt through the hole and tighten a nut up on it. That will hold the regulator gear in place when you take the motor loose from the frame. There is a spring inside and it will give you a big mess if you do not drill and put in this bolt. The rest is easy and simple from here. Remember to grease up all of the channels on the window and door when you put everything back in.

[Ormly]

Many thanks to all you guys for your help. I didn't want to make a move until I received some info as this you have given me.

Again, Thank you

Orm

[KShortell]

This was a timely link. I need to get around to replacing the passenger side front window myself. I had the driver's done about 12 years ago. The pass. side slowed down the last few years and now won't move. I figure it doesn't hurt to be up- better than stuck in the down position- ha!

Thanks!

[ocbaud]

since we are sorta on the subject,

what all is involved in converting from manual to electric windows and locks?

[85 c-10]

I replaced both of mine last weekend. It took a total of about 1 hr. Started pass. side. Once the window is up, I taped it there, and got the rollers off the tracks. If the whole scissor deal is in the up position, its pretty easy. I just rotated it out. I didn't even get any battle scars. They both work great now.

Josh

[Ormly]

Well, I got the thing out and checked the motor in its freed up condition and it was dead. I also discovered the rollers were very wobbly on the regulator.
I went to "Auto Parts Warehouse " and got the whole business for 65.00 and change. Free shipping and no tax. Not to shabby since it comes with the motor as well.


Thanks again, fella's.

[Captkaos]

Originally Posted by ocbaud

since we are sorta on the subject,

what all is involved in converting from manual to electric windows and locks?

Getting the power harness (it is seperate) out of a donor and swapping the manual regulators for electric.

[Ormly]

OK! I got the sucker in! In the process I figured out, after seeing the front channel all dryrotted and seperated, what perhaps caused the motor to give out. Tryin to overcome all that extra resistance, I figure. Anyway, I am contemplating replacing all the window rubber and channels. So my question is who here has been down that road already and can share their experiences. Also, where to go for the good prices?

Thanks.

[piecesparts]

Originally Posted by Ormly

OK! I got the sucker in! In the process I figured out, after seeing the front channel all dryrotted and seperated, what perhaps caused the motor to give out. Tryin to overcome all that extra resistance, I figure. Anyway, I am contemplating replacing all the window rubber and channels. So my question is who here has been down that road already and can share their experiences. Also, where to go for the good prices?

Thanks.

Believe it or not, this replacement will be the easiest of all. The felt that is in the window slide tracks can be replaced with the door intact. Just start at the top of the window track and remove the felt and then slide the felt up out of the track that goes down into the door.
The door rubber edging for the outside of the window can be done with the window rolled down and the inside panel pulled. I would get the new stuff and see how they are held on, before tearing into the old, so that you have a good picture in your mind as to how it should come off. The replacement trim for the inner door panel can be done, while the panel is off.