The D600 makes sense too because the steering wheel in the woods truck was unusually large, close to two feet in diameter.
Larger wheel, better leverage.
We had an F600 Ford and the larger steering wheel and air brake controls were the only difference inside the cab over a standard pickup.
This truck site has a few images including the interior of a 76 D600
http://images.search.yahoo.com/imag...&sigr=12athe5r5&sigi=11k26r55s&sigb=135ejsbh0
Larger wheel, better leverage.
We had an F600 Ford and the larger steering wheel and air brake controls were the only difference inside the cab over a standard pickup.
This truck site has a few images including the interior of a 76 D600
http://images.search.yahoo.com/imag...&sigr=12athe5r5&sigi=11k26r55s&sigb=135ejsbh0