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**aotte1** · 07-27-2019, 12:17 PM

Interested in why the cowl vents on firewall have differences on 72’ model year Blazers and trucks, along with other years, 67 to 72’. Especially, the far vent on passenger side. In 72’ see two different shapes on both Blazers and trucks. Also other years show differences too. Below are some photos by years. This post is 72’. It is not AC vs non-AC as trucks/Blazers with AC have both styles. Photos 3 and 4 are Pete’s Blazer. Photo 5 is a short bed truck. Photos 1 and two, is a Blazer.

Photos below: under construction

Les

Model Year 1972

07-27-2019, 12:17 PM	#1
aotte1 Registered User Join Date: Oct 2013 Location: lousiville Ky Posts: 2,645	Cowl Vent Differencees Interested in why the cowl vents on firewall have differences on 72’ model year Blazers and trucks, along with other years, 67 to 72’. Especially, the far vent on passenger side. In 72’ see two different shapes on both Blazers and trucks. Also other years show differences too. Below are some photos by years. This post is 72’. It is not AC vs non-AC as trucks/Blazers with AC have both styles. Photos 3 and 4 are Pete’s Blazer. Photo 5 is a short bed truck. Photos 1 and two, is a Blazer. Photos below: under construction Les Model Year 1972 Attached Images Last edited by aotte1; 07-28-2019 at 12:27 AM.