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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

Help with Rear Window Seal!!!

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Old Aug 26, 2009 | 03:25 PM
  #1  
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Help with Rear Window Seal!!!

I need some help. I did my research and bought a seal from DC. I found the trick with the soapy string. I cleaned up anything resembling rust after removing the window. We put the seal on the window and started the string pulling business. Aside from a couple of places where the seal actually started to tear, it went in with some do-overs and copious amounts of words that cannot be repeated here. It seems to be sealing the water out of the cab.

HOWEVER, the rubber on the outside does not lay against the metal like I think it should. It has 1/6th to 1/8th inch gap all the way around, and I just cannot believe that is the way it should be, since I can imagine dirt and stuff getting trapped. Am I missing something???
 
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Old Aug 26, 2009 | 03:39 PM
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You are correct! Something is wrong here. The outside rubber should lay tight aganst the cab. Is it possible that you may have installed the gasket backwards??? The string deal is actually heavy twine and the soap is liberally applied with a spray bottle. Letting the sun warm the gasket before installation helps and you can use butel rubber in the corners after installation for additional water proofing. If you think the rear window is difficult, wait till you do a windshield with the stainless trim...
 
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Old Aug 26, 2009 | 03:46 PM
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Nope, I got the gasket right on the inside. It fits perfect in there. I used heavy twine/light rope (1/8th inch?) and soapy water from a spray bottle. I might could have used more soap, but...

We did the install in the sun on a very warm day hoping that it would soften the rubber up.

I will not do the front windshield...ain't nooooo way.
 
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Old Aug 26, 2009 | 04:40 PM
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Believe there's an article in the 'spec/article' forum on window installation. Topic has come up on occasion may try running search and narrow field to the 61-66 forum.
 
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Old Aug 27, 2009 | 07:42 AM
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Yep, I found that article before I started. Like I said, I did a fair amount of research before installation, which frustrates me more that it didn't turn out right . Subsequent searches have turned up nothing on my problem. I called Dennis Carpenter and they were unaware of such a problem. DC referred me to a glass shop they deal with to ask questions.

I really don't know what else to do except try to get DC to replace the seal and try again.
 
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Old Aug 27, 2009 | 07:53 AM
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Sounds bazarre that you have a gap that size. If you have the wide lip of the rubber on the inside and the narrow lip on the outside of the truck, then that part is right. If you had installed it opposit from that the whole glass usuall sticks out the back about 1/2". The size gab you hace doesn't sound like anything I've ever experienced.
 
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Old Aug 27, 2009 | 08:05 AM
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It's not really a gap. It's more like the groove where the sheet metal goes is not deep enough and the rear rubber is forced out an an angle. The rear part of the seal is humpy, like it wants to lay against the metal in places, but the other "high" areas won't let it. However, no where does it actually lay like it should. We've tried to massage it to see if the metal just doesn't sit in the groove right...no luck.
 
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Old Aug 27, 2009 | 08:28 AM
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I have installed some that were lumpy and we too couldn't find a good solution for that. I thought you had a continuous gap. Sorry.
 
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Old Aug 27, 2009 | 08:29 AM
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No worries...I wasn't clear on that. What did you finally do?
 
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Old Aug 27, 2009 | 02:31 PM
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Rick,,,,good to know you are here....may need some parts...Dave......ps i love it when i call and it does not go through 3 operators and 5 voice mails to talk to someone......Rick answers his own fone.......beat that!!!!!!
 
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Old Aug 27, 2009 | 04:06 PM
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of the opinion lot depends on supplier. Purchased from just about every Ford truck supplier over the years and found majority are helpful, with good customer support department. Having said that, certain items I will only purchase from a particular supplier(s), for ex., when it comes to window gaskets, weatherstrip kits, seals, etc., I only purchase them from either D.C., or Carolina Classics, not familiar with NPD kits. Also, suggest purchasing an item more specific to the year truck. Tossed a set of Radiator support bushings, went with a cheaper generic set of bushings rather than selecting the set more specific for the year of my truck. Also learned this with a weatherstrip kit. Anyhow, had an urge to chime in and add my $.02.
 
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Old Aug 27, 2009 | 10:42 PM
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The gap sounds about right if it were on the inside and you had a headliner that went around the window.
 
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Old Aug 27, 2009 | 11:35 PM
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I've run into this too. The fix is to pull the glass back out and grind about 1/16 - 1/8 inch off the lip of the window frame, or live with it.
 
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