The 1956 tandem in the picture was found in the western US and was pretty much intact. The truck has the 322/6-speed automatic combo with a 3 speed aux. tranny and power divider( similar to a transfer case)to engage the 2nd drive axle. The dual drive shaft system is a sight to behold!!! I am not sure why there are no survivors left. It appears the factory tandems are the rarest of the big Chevrolets.
