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jgrnwd · 09-06-2015, 10:42 PM

I have a '79 GMC Suburban with the electric roll down window. It took me 5 or 6 hours and a can of WD-40 and a whole lot frustration to get my window to work.
I am not sure if the tailgate is actually supposed to be that heavy, but mine is pretty heavy as well.
I am not sure what you mean by the "Sash" but the window has it's bottom metal tray it sits in which has wheels that ride in a track. That track can get gummed up, like mine did, and it will stop working. The center wheel should just be a guide, if I am not mistaken.

Take the cover off of the tailgate and watch it roll up and down. Adjust as necessary and lubricate as necessary. There isn't a whole lot else I can recommend with my limited knowledge. Hope this was helpful.

09-06-2015, 10:42 PM	#2
jgrnwd Registered User Join Date: Sep 2015 Location: Boise, Idaho area Posts: 2	Re: Suburban Tailgate Woes I have a '79 GMC Suburban with the electric roll down window. It took me 5 or 6 hours and a can of WD-40 and a whole lot frustration to get my window to work. I am not sure if the tailgate is actually supposed to be that heavy, but mine is pretty heavy as well. I am not sure what you mean by the "Sash" but the window has it's bottom metal tray it sits in which has wheels that ride in a track. That track can get gummed up, like mine did, and it will stop working. The center wheel should just be a guide, if I am not mistaken. Take the cover off of the tailgate and watch it roll up and down. Adjust as necessary and lubricate as necessary. There isn't a whole lot else I can recommend with my limited knowledge. Hope this was helpful.