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02-06-2024, 11:05 AM | #1 |
Blue 67
Join Date: Apr 2004
Location: Western WA
Posts: 1,179
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Rear window Gasket
Hello:
Does rear window gasket supposed to be a complete round gasket or is it supposed to be a straight line which the two ends have to meet at the bottom of the window? I got this precision gasket set which is a line, and I am not sure if it is supposed to be like that. Having a cut and the water leakage at the bottom of the window. Thanks
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1953 GMC 3/4 ton: current project 1967 C20: 5.3 voretc with T5 conversion, 4 wheel 8 lug disc brake 1972 Nova: my 4 door sport sedan! 5.3 voretc + T5 conversion. drivable project, FUN!! 1979 Camaro Z28: 5.3 vortec conversion with build TH350: drivable project, Fun to drive 1992 Camaro RS convertible (Z28 clone): 5.3 conversion with build T5: on going project 2005 Silverado 2500, 4x4 Duramax, original owner |
02-06-2024, 01:20 PM | #2 |
Senior Member
Join Date: Apr 2017
Location: Suwanee GA
Posts: 273
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Re: Rear window Gasket
Depends on "Supposed" definition in you post.
If your going to a true restoration as it was in the day then complete one piece no breaks. (not a line). Still available by some vendors. Here is a reference from the shop manual https://chevy.oldcarmanualproject.co...51ctsm0105.htm Other vendors have done the "Line" type so they can do one part to fit multiple years and manufactures. Cut to fit. And there is nothing wrong with this type with proper sealing. |
02-06-2024, 06:27 PM | #3 |
Registered User
Join Date: Mar 2022
Location: Surrey BC
Posts: 916
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Re: Rear window Gasket
little dab of 3m weatherstrip adhesive to join the ends, offset the expansion cord joint from the seal joint and glue it at end too
also for good seal, get a tube on non hardening butyl rubber glass sealant and run a bead in the rubber on both the body and glass side. For windshield butyl rubber on body side and adhesive on glass side to help lock it in place. I am not a glass guy, but Precision has some utube videos on installing glass in old trucks, they are worth watching. I made a ball end tool from a junk screwdriver, bent a welding rod into a tool to feed the cord into rear seal and found some good quality hard finish cord to pull the windshield rubber seal with. got all 3 pieces of glass in with a helper, no leaks |
02-07-2024, 02:10 AM | #4 |
Registered User
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 15,710
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Re: Rear window Gasket
the glass shop here in town used window rubber off a roll on mine same rubber that us used on heavy equipment, some semi trucks and farm equipment. same as what you have in that precision kit.
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Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around. |
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