[Brad54]

There are three different factory fan shrouds for '60-'62 trucks.
The first looks like a '58-'60 passenger car "Barrel" type shroud.
The second is more of a full-shroud that covers the whole core.
The third is wider and has an area "notched" to clear lines for automatic transmissions.
They show up here every once in a while, and show up on Ebay too.

I don't know if there is a difference between 6 and 8 cylinder applications, or even if there are more versions.