The Watts linkage locates the rear axle
laterally and ensures strictly-vertical motion. Beside "S" symbol is the center pivot
of the center section. Notice the tower welded to the
the axel to which the center section is attached. The left and right most
end of the linkage attach to brackets handing from the rails of the chasis.
Also, notice that everything's neatly tucked
inside the chasis.
Transmission, etc.
Transfer case, etc.
Trailing arm mount on the rear axle.
Transfer case output to front axle uses a
CV joint of double-u-joint type.