The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Difference between early and later factory rear slider windows

61CustomCamper · 10-19-2024, 03:19 AM

I'm missing a piece of trim from the factory sliding window in my 75 GMC - I've been trying to find a slider window to pull the missing part from but all the ones I've found so far have thinner glass, and don't fit. One was from a 78 and the other from an 80 - both looked like factory windows but the glass was much thinner. I thought the glass thickness didn't change until 1980 or so - does anyone know when the glass thickness/slider window design changed on these trucks?

10-19-2024, 03:19 AM	#1
61CustomCamper Registered User Join Date: Jul 2022 Location: Portland, Oregon Posts: 1	Difference between early and later factory rear slider windows I'm missing a piece of trim from the factory sliding window in my 75 GMC - I've been trying to find a slider window to pull the missing part from but all the ones I've found so far have thinner glass, and don't fit. One was from a 78 and the other from an 80 - both looked like factory windows but the glass was much thinner. I thought the glass thickness didn't change until 1980 or so - does anyone know when the glass thickness/slider window design changed on these trucks?