Converting a crew cab to a regular cab is not 

an easy task as I've never seen a regular taxi DT pickup before.

So Jlord8 used a bit of ingenuity, using a "lift"

for the cockpit rear window and incorporating it

regular cockpit side window. Additionally,

the flight deck door lines have been shortened

to allow for better airflow in smaller cabins

The box extends from 5'7" to approximately 6'4" high.