The most unique feature of the 1960-1961 Chevy / GMC Truck is the design of their hood. It is not in any way similar to the year before. Whether you like it or not, there is no other vehicle with an appearance like this Chevy and GMC Truck. As some areas of vehicle production were known for saving on tooling costs (especially with trucks) this is a perfect example. The large sheet metal hood is the same on GMC and Chevrolet trucks but the parking light housings are different!

Look at the attached photos. You will see how GM gave each of their two brands a different look while keeping the same hood.

The large sheet metal hood is almost the same margins however the front welded in panels are different. Thus, for less money Chevrolet and GMC could look a little different for less tooling cost. 

To make the brands a little different the front inserts have different shaped stamped metal and this required different park light lenses.

The lenses were clear as in past years, not amber as began in 1963. The Chevrolet lenses are now available for current restoration. The 1960-61 GMC lenses have not been reproduced.