Sliding rear window gasket?

[Tlambert]

I also have the RPO code A28 and have the aluminum slider like TLambert posted. My felt runners are trashed and the window is missing the center aluminum uprights. I am in the process of restoring it if possible. I was able to remove it with the rubber surround seal intact. I also have purchased one of the Passport windows from the guy on eBay. It is not the same size but I believe the normal rear window gasket will work. Trying to keep all my options open for this restoration.

If you start to restore yours please do a thread for it. It will be a help to many now and in the future.

My felt needs to be replaced. The latch is broken from many break ins from locking the keys inside. I know I’ve done it several times lol. Zip tie fixes it though. Lol.

I recently picked up another aftermarket slider window new in the box for $10.00 at a swap meet. Instructions say that it uses solid glass seal.
Not sure what I’m going to use yet though.

 

[DoubleDingo]

I am lucky, mine doesn't leak, but it does need some new felt, some thick paper in the channels keep the sides from rattling.

 

[Finkaire]

Had to remove mine for paint, couldn’t save it

 

[Juggernaut]

If you start to restore yours please do a thread for it. It will be a help to many now and in the future.

My felt needs to be replaced. The latch is broken from many break ins from locking the keys inside. I know I’ve done it several times lol. Zip tie fixes it though. Lol.

I recently picked up another aftermarket slider window new in the box for $10.00 at a swap meet. Instructions say that it uses solid glass seal.
Not sure what I’m going to use yet though.

I recently rebuilt my factory slider. The two windows I have both came as factory A28 option for 78 and 79 and both are aluminum frame. The felt channel and latch are available on Amazon. The hardest part for me to find was the bulb seal. I found seal at DK hardware, but it was just a tiny bit to small. I haven't noticed any leaks yet though. I used the Precision one piece rear seal. They say they won't work on the factory slider, but I had already purchased it and couldn't return it. The Precision seal is nearly identical in shape to the original seal that came out, but I did have trouble at the top when I roped it in. There just didn't seem to be enough room, and the seal tore on the inside. This is the first time I tried to rope one in, so someone who has done it before may have better luck. I just purchased a new 2 piece seal from USA1. The guy I spoke to said it would work on the factory slider. It also turned out to be a Precision seal, the one Precision says won't work. Comparing my original and the Precision, both are identical. I haven't installed the 2 piece yet, but I will let you know how it goes.
Top is the original window and seal, bottom is my rebuilt window and Precision seal

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[longbeach]

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I'm still shopping. One guy local has window that looks just like this one. Advertised with a new gasket and trim piece. I'm wondering if this is a later model window. Seems a little different from the ones with the larger aluminum frame?? Or is it aftermarket.??

 

[Grit dog]

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I'm still shopping. One guy local has window that looks just like this one. Advertised with a new gasket and trim piece. I'm wondering if this is a later model window. Seems a little different from the ones with the larger aluminum frame?? Or is it aftermarket.??

Afaik it’s aftermarket. All OE windows I’m aware of are double sliding panes.

 

[longbeach]

I think that one is double sliders. Missing the trim piece on right hand slider. Maybe?

 

[Grit dog]

I think that one is double sliders. Missing the trim piece on right hand slider. Maybe?

You’re correct. I missed that the slider that’s obvious isn’t large enough.
But yeah it won’t close tight or lock without the other trim piece.

 

[longbeach]

This is the one for sale

 

[FireTruck1984]

I purchased one of these NOS aftermarket sliders that looks factory, but takes a one piece window gasket.

NOS “Pass-Port” rear slider windows 1973-87 Chevy/GMC full-size Squarebody | eBay

Find many great new & used options and get the best deals for NOS “Pass-Port” rear slider windows 1973-87 Chevy/GMC full-size Squarebody at the best online prices at eBay! Free shipping for many products!

www.ebay.com

These Pass-Port Sliders are the closest to Factory Sliders.
They’re good quality and use the same window seal as solid glass rear windows.
There is one available on ebay…

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[Soundmound]

I'm tempted to buy one for future use. However, I hear a whisper on the interwebs that someone may be working on a gasket for the OE unit. I'm sure it will be less than $300 IF it happens.....the internal struggle is a toughie.

 

[Tlambert]

I recently rebuilt my factory slider. The two windows I have both came as factory A28 option for 78 and 79 and both are aluminum frame. The felt channel and latch are available on Amazon. The hardest part for me to find was the bulb seal. I found seal at DK hardware, but it was just a tiny bit to small. I haven't noticed any leaks yet though. I used the Precision one piece rear seal. They say they won't work on the factory slider, but I had already purchased it and couldn't return it. The Precision seal is nearly identical in shape to the original seal that came out, but I did have trouble at the top when I roped it in. There just didn't seem to be enough room, and the seal tore on the inside. This is the first time I tried to rope one in, so someone who has done it before may have better luck. I just purchased a new 2 piece seal from USA1. The guy I spoke to said it would work on the factory slider. It also turned out to be a Precision seal, the one Precision says won't work. Comparing my original and the Precision, both are identical. I haven't installed the 2 piece yet, but I will let you know how it goes.
Top is the original window and seal, bottom is my rebuilt window and Precision seal

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I appreciate the response. Do you have a link to the felts and latch you bought from Amazon?
Also Maybe a part number or link to the Precision sliding window seal?

I’m not sure what you mean by “bulb seal” unless you’re talking about the cab light on the roof?

 

[Juggernaut]

Here's the link for the felt. The bulb seal is between the window panes.
https://www.amazon.com/gp/product/B002CXH3M6/

 

[Juggernaut]

Here's the latch
https://www.amazon.com/gp/product/B002CXH0YM/

 

[Tlambert]

Here's the link for the felt. The bulb seal is between the window panes.
https://www.amazon.com/gp/product/B002CXH3M6/

Here's the latch
https://www.amazon.com/gp/product/B002CXH0YM/

I’m not familiar with DK Hardware. Do you have a link to the particular bulb seal you purchased?

Thanks for posting those. I will look into getting them.