When the C10 truck was first introduced for the 1960 model year, they were available with two different back windows. The small window came standard and was found in most trucks, so you can understand why a big back window truck has always brought more money on the open market. Because of this, there have been tons of trucks that were modified over the years to have a big back window and they were done in a variety of ways. The truth of the matter is that the back of the cab, on the exterior, is basically the same for either window option because the back panel has a flat recess that was filled completely by glass on the big window models and only had a small window opening in the middle of it on small window trucks. The difference lies within, where the interior panel is different from one to the other.
Thanks to modern replacement parts, you can now do a complete big window conversion with new parts. And not only that, but you can do it on a painted and finished truck if you are careful because the exterior of the truck needs part of the back cut out, but it doesn’t need anything replaced and that means no painting is needed. Now you will need to be careful with the welder to keep from messing up paint on the back of the cab, OR you can panel bond the whole thing and forget the welder! For those of you who don’t know, Panel Bond is glue that is used to hold body panels on cars and is used on new car construction from the factory. It is as strong, or stronger, than a weld and can be used in all kinds of sheet metal replacement projects.
Watch the video below to see how to use both Panel Bond and a welder to make this C10 into a big window truck.
Website: https://www.brotherstrucks.com/ Complete step-by-step process on converting your Small Window Chevrolet or GMC Pickup to a Big Window deluxe cab style! Dave Welch is a classic truck Specialist and he’s got plenty of tricks for nearly every project on your classic! Find Dave’s videos and more for your classic at www.brotherstrucks.com Parts used: 60-66 Big Window Conversion Panel: https://bit.ly/3AHRtYJ