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Re: 1985 w150 sliding rear window/ gasket [Re: 73cuda340] #2950221
08/03/21 10:00 PM
08/03/21 10:00 PM
Joined: May 2004
Posts: 136
MN
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58pwrwgn Offline
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58pwrwgn  Offline
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Joined: May 2004
Posts: 136
MN
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

Last edited by 58pwrwgn; 08/03/21 10:05 PM.
Re: 1985 w150 sliding rear window/ gasket [Re: JDMopar] #2950225
08/03/21 10:08 PM
08/03/21 10:08 PM
Joined: May 2004
Posts: 136
MN
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58pwrwgn Offline
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58pwrwgn  Offline
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MN
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

Re: 1985 w150 sliding rear window/ gasket [Re: 58pwrwgn] #2953545
08/13/21 07:01 PM
08/13/21 07:01 PM
Joined: Jun 2007
Posts: 1,169
clarks summit pa
73cuda340 Offline OP
super stock
73cuda340  Offline OP
super stock

Joined: Jun 2007
Posts: 1,169
clarks summit pa
Here's a picture of the rear window. My guess is that it's factory.

20210803_170246.jpg

1973 Cuda 528 all aluminum Hemi, 4 speed, 3.23 Sure-Grip, (JA5) Silver Frost Metallic 1973 Challenger Rallye 340 1985 W150 Power Ram prospector 1986 Camaro IROC-Z 305 tpi
Re: 1985 w150 sliding rear window/ gasket [Re: 73cuda340] #2953554
08/13/21 07:44 PM
08/13/21 07:44 PM
Joined: Jan 2003
Posts: 4,142
Canada -- Posts: 4034 -Registe...
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5thAve Offline
Doesn't care what this says anyway
5thAve  Offline
Doesn't care what this says anyway
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Canada -- Posts: 4034 -Registe...
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.

Last edited by 5thAve; 08/13/21 07:50 PM.
Re: 1985 w150 sliding rear window/ gasket [Re: 58pwrwgn] #2953849
08/14/21 08:06 PM
08/14/21 08:06 PM
Joined: Jan 2003
Posts: 8,483
Candler,NC / Myrtle Beach, SC
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JDMopar Offline
master
JDMopar  Offline
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Joined: Jan 2003
Posts: 8,483
Candler,NC / Myrtle Beach, SC
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.

Re: 1985 w150 sliding rear window/ gasket [Re: 5thAve] #2953863
08/14/21 08:38 PM
08/14/21 08:38 PM
Joined: Dec 2009
Posts: 20,631
in a cattle trailer down by th...
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Guitar Jones Offline
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in a cattle trailer down by th...
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.


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon!
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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