The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - So when in 1972 did GM start installing single wall tops?

**BlazerBill** · 03-22-2017, 07:42 PM

I believe that 72 was the only year, that had double wall. With the ribbing running side to side. That's the way my three were configured. 69 4wd, 71 4wd
72 2wd highlander grapefruit yellow w/avocado cst.
Just a theory.

03-22-2017, 07:42 PM	#37
BlazerBill Senior Member Join Date: Apr 2013 Location: Northern ca. Wine country Posts: 405	Re: So when in 1972 did GM start installing single wall tops? I believe that 72 was the only year, that had double wall. With the ribbing running side to side. That's the way my three were configured. 69 4wd, 71 4wd 72 2wd highlander grapefruit yellow w/avocado cst. Just a theory.