[marco]

Hi Kurtis,

The two square holes closest to the camera are the inspection openings underneath the transfer case.
Through this holes it is possible to adjust the parking brake mechanism and also to (dis)connect the speedometer cable.
Normally these holes are covered by one plate of 1/4" thickness, approx. 60 cm's long and 20 cm's wide.

Behind these two holes, another two can be seen.
These holes are below the transmissions and are also covered by rectangular plates.

Marco