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1985 w150 sliding rear window/ gasket

Posted By: 73cuda340

1985 w150 sliding rear window/ gasket - 07/26/21 07:02 PM

Does anybody have a picture of a factory sliding rear window for an 80s w150? Trying to determine if mine is original or aftermarket. Also, does anybody make a rear window gasket for one with the chrome trim that pushes in? I can only find replacements for aftermarket windows without the trim. Thanks
Posted By: Guitar Jones

Re: 1985 w150 sliding rear window/ gasket - 07/27/21 12:34 AM

Nobody makes the gasket for the factory slider.
Posted By: 73cuda340

Re: 1985 w150 sliding rear window/ gasket - 07/27/21 02:33 AM

Ok thanks. Are the gaskets that much different for the aftermarket sliders?
Posted By: OrangeProwler

Re: 1985 w150 sliding rear window/ gasket - 07/27/21 04:07 PM

Originally Posted by 73cuda340
Ok thanks. Are the gaskets that much different for the aftermarket sliders?


From what I remember yes. I can't remember and I haven't verified this but, I think someone used either both the slider and gasket for a 1994-1996 Ford F-150 application but, don't hold me to it as I'm uncertain. I thought I read it somewhere but, can't remember if it was even right.
Posted By: larrymopar360

Re: 1985 w150 sliding rear window/ gasket - 07/27/21 05:15 PM

www.lmctruck.com doesn't make those?
Posted By: Guitar Jones

Re: 1985 w150 sliding rear window/ gasket - 07/27/21 08:26 PM

You can get the aftermarket sliders and gaskets but not the gasket for the factory slider, went through that a couple years ago on my '92. That is why it has a regular rear window in it now and yeah, it's the same as some Ford application. I never used the slider anyway.
Posted By: 73cuda340

Re: 1985 w150 sliding rear window/ gasket - 07/27/21 09:47 PM

Originally Posted by larrymopar360
www.lmctruck.com doesn't make those?


Only for the standard rear windows and the aftermarket rear slider that they sell.
Posted By: larrymopar360

Re: 1985 w150 sliding rear window/ gasket - 07/27/21 10:31 PM

Originally Posted by 73cuda340
Originally Posted by larrymopar360
www.lmctruck.com doesn't make those?


Only for the standard rear windows and the aftermarket rear slider that they sell.
That's too bad. I just checked Ebay and no NOS ones right now.
Posted By: JDMopar

Re: 1985 w150 sliding rear window/ gasket - 07/29/21 01:41 AM

Are you looking for the rubber just for the sliding parts of the window, or the whole gasket? Reason I ask, is I used to have an 84 D350 with a solid glass, and a friend gave me a sliding rear window. I had a glass guy come swap it out, and he reused the same gasket that was around the perimeter opening. Of course, this was about 1990 when the truck wasn't very old.
Posted By: 73cuda340

Re: 1985 w150 sliding rear window/ gasket - 07/30/21 03:27 PM

Im looking for the whole gasket. Maybe I'll just try ordering a regular one then and give it a try.
Posted By: Guitar Jones

Re: 1985 w150 sliding rear window/ gasket - 07/31/21 02:09 AM

It won't work.
Posted By: 73cuda340

Re: 1985 w150 sliding rear window/ gasket - 07/31/21 04:07 AM

Ok
Posted By: JDMopar

Re: 1985 w150 sliding rear window/ gasket - 07/31/21 02:52 PM

Originally Posted by Guitar Jones
It won't work.


How come my old gasket in the 84 D350 worked? I know it was 100% the original gasket, cause I stood there and watched the guy swap the windows out in like 5 minutes. It never leaked a drop. Not arguing, just wondering. shruggy
Posted By: 5thAve

Re: 1985 w150 sliding rear window/ gasket - 07/31/21 03:22 PM

Aftermarket slider windows use the same gasket as glass. The factory slider windows fit differently and use a different gasket.
Posted By: OrangeProwler

Re: 1985 w150 sliding rear window/ gasket - 07/31/21 03:59 PM

A lot of guys say to reuse the factory gasket if you're reinstalling the factory slider anyways[align:right][/align]. The last NOS gasket I saw for a 72-80 dodge truck sold for $200+ shipping about two years ago.
Posted By: 73cuda340

Re: 1985 w150 sliding rear window/ gasket - 08/02/21 01:11 AM

Does anyone have a picture of a factory slider? I believe mine is original, but I'm not positive
Posted By: OrangeProwler

Re: 1985 w150 sliding rear window/ gasket - 08/02/21 01:52 AM

Maybe someone could confirm but, this truck looks to have a factory rear slider.

https://www.purplewave.com/auction/...ps_and_Vans-1/2_Ton_Pickup_or_Van-Kansas
Posted By: NITROUSN

Re: 1985 w150 sliding rear window/ gasket - 08/02/21 02:35 AM

Originally Posted by 73cuda340
Does anyone have a picture of a factory slider? I believe mine is original, but I'm not positive


Why do you not just post the inside and outside pictures of your slider?
Posted By: 5thAve

Re: 1985 w150 sliding rear window/ gasket - 08/02/21 04:26 AM

I don't know what the 80s ones look like but the older ones have bare aluminum frame and sit flat to the back of the cab. If it sticks out or if the top or sides are flat and don't match the window hole it's a pretty good sign it's aftermarket.
Posted By: 73cuda340

Re: 1985 w150 sliding rear window/ gasket - 08/03/21 09:06 PM

Originally Posted by NITROUSN
Originally Posted by 73cuda340
Does anyone have a picture of a factory slider? I believe mine is original, but I'm not positive


Why do you not just post the inside and outside pictures of your slider?


I'll try, but I can never get pictures to work on a post.
Posted By: 58pwrwgn

Re: 1985 w150 sliding rear window/ gasket - 08/04/21 02:00 AM

I haven't replace an old rubber gasket slider in years. The frames of the factory sliders were wide and require a gasket to fit it. The aftermarket sliders were designed for guys wanting to replace a standard back glass without having to buy a new gasket. If you broke a factory slider, it was cheaper to by an aftermarket slider plus a new gasket
Posted By: 58pwrwgn

Re: 1985 w150 sliding rear window/ gasket - 08/04/21 02:08 AM

Originally Posted by JDMopar
Are you looking for the rubber just for the sliding parts of the window, or the whole gasket? Reason I ask, is I used to have an 84 D350 with a solid glass, and a friend gave me a sliding rear window. I had a glass guy come swap it out, and he reused the same gasket that was around the perimeter opening. Of course, this was about 1990 when the truck wasn't very old.

Are you sure your friends slider was factory and not aftermarket
Posted By: 73cuda340

Re: 1985 w150 sliding rear window/ gasket - 08/13/21 11:01 PM

Here's a picture of the rear window. My guess is that it's factory.

Attached picture 20210803_170246.jpg
Posted By: 5thAve

Re: 1985 w150 sliding rear window/ gasket - 08/13/21 11:44 PM

Looks aftermarket. The factory ones the frame matches the window hole better then that and the ends join at the bottom not some random spot on the side. Unless things changed in the 80s.
Posted By: JDMopar

Re: 1985 w150 sliding rear window/ gasket - 08/15/21 12:06 AM

Originally Posted by 58pwrwgn
Originally Posted by JDMopar
Are you looking for the rubber just for the sliding parts of the window, or the whole gasket? Reason I ask, is I used to have an 84 D350 with a solid glass, and a friend gave me a sliding rear window. I had a glass guy come swap it out, and he reused the same gasket that was around the perimeter opening. Of course, this was about 1990 when the truck wasn't very old.

Are you sure your friends slider was factory and not aftermarket


No idea. It was free, other than the $20 it cost me to get it installed by someone who knew what he was doing. It looked very similar to the one in the above post. It moved air thru the non AC truck, and that was all that mattered to me...lol.
Posted By: Guitar Jones

Re: 1985 w150 sliding rear window/ gasket - 08/15/21 12:38 AM

Originally Posted by 5thAve
Looks aftermarket. The factory ones the frame matches the window hole better then that and the ends join at the bottom not some random spot on the side. Unless things changed in the 80s.

Looks aftermarket to me as well. All the factory ones I've seen had black frames and I've had an 89 and 92 with them. The factory ones sit pretty flush as well. The aftermarket ones not so much.
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