Even though a few cartoon dwarfs made it okay to whistle while you work, having your muscle car whistle while you drive is not cool. The initial design of the Chevelle featured vent windows, a common staple of just about all vehicles at the time. The introduction of the ’70 model saw the end of the vent window when it came to Chevelles. The El Camino siblings were a little slower in the design change and kept them until ’72. While the vent window assemblies made it very convenient to quickly blast the interior with fresh air, as they aged and the seals dried up they allowed for air and water leaks. Water leaks are not only annoying, but they help facilitate rust. The other issue—and one that can drive you insane—are the little air leaks that whistle when you get up to speed.
Luckily these are annoyances you don’t have to live with thanks to aftermarket companies like National Parts Group (NPD). NPD offers just about everything you could need to restore your muscle car, including all the components for a vent window refurbishing, right down to the glass. NPD has warehouses and stores located in North Carolina, Michigan, Florida, and (where we will be doing the work) California. We received our parts in two days without adding a rush or overnight shipping.
It’s a good thing NPD offers all these parts because our subject is a freshly painted ’69 El Camino that not only has dried out rubber goods, but completely missing vent glass. We have been to a lot of shows over the years and have seen many restored cars with unrestored vent windows. Since we had a willing subject and knew the information needed to get out, we figured it was high time to do this story. Now you can stop whistling.