The model number CE31034 and the VIN clearly show it to be a factory 4x2 C30 V8 truck.
GM did not offer factory 4x4 C30-C3500 trucks during the 67-72 production years. In fact the first named K30-K3500s were offered for the 77MY.
All too often people are quick to claim a converted truck as a K30 when in fact there were none.
So any true 4x4 C30 you see is going to be a conversion either period or later.
As such the trucks will often not be optioned to the 67-72 factory K series convention. Big Blocks and TH400 transmissions come to mind.
An interesting example is the 70 CST/30 NAPCO that can be seen here.
http://67-72chevytrucks.com/vboard/s...d.php?t=667722