Can you see a universal joint (u-joint) ?
If yes, you have an open drive-shaft.
An open drive-shaft became standard equipment in 1955st trucks
There is a possibility that your drive-shaft and rear-end/differential was changed, if you have a 1954 1/2 ton truck.
What is the code that is pressed/stamped into your engines block - in the flat ledge behind the distributor.
I'll find a post an illustration of the enclosed drive-shaft/drive-line 3100 trucks.
enclosed drive-shaft u-joint ball/bell/cover
