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Old 01-31-2012, 11:30 PM   #1
75gmc454
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Rear window thickness

I may be bringing up an old topic but I have not had any success finding any info in some of the searching that I have done.

A buddy of mine bought a 74 custom deluxe with a broken rear window. Well we went to a junkyard and found 2 rear glasses. Both were soft ray and both were out of 73-87's, but one was thicker than the other. I told him I thought the older trucks took the thicker glass, but he bought the thinner one. He put the glass in, but it does not seem to fit the rubber seal right. What glass is the truck supposed to have?
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Old 02-03-2012, 12:18 AM   #2
superwade57
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Re: Rear window thickness

bump

.... out of curiosity... i just got one from a 76 seems pretty thin to me but never heard of two thicknesses being available
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Old 02-03-2012, 01:01 AM   #3
78 Chevyrado
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Re: Rear window thickness

Don't know for sure, but if there is two thicknesses, thicker glass, if there IS a difference, is from 73-80. Thinner glass if there is a difference is from 81-up. buy the new gasket to suit.


I only say this because a selling point for the 81-up models was the weight savings vs the earlier models, especially the glass weight savings.

Hunt up the parts suppliers. if all the gaskets you can find are 73-87, there probably ISN'T a difference.

I do know for a fact that the side glass is different thicknesses. don't know about windshields and back glass.
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