If I'm not mistaken due to the length laws that truck came with a shorter wheelbase with a single sleeper. From what I recall it wasn't until later in the 80's the doublewide sleepers were becoming more popular. Sweet ride and truely a classic. You should hire me to drive it and make you $$$.
I just restored this 1984 Ford LN9000 - 300 Cummins - 9 speed. It's pulling one om my new 53 ft vans. The driver " Dallas" has worked for me for 15 years.
My son's jeep. I just got through doing a clayton long arm 5.5 kit along with a Solid dana 44 axle w/ discs 4:88 gears and air lockers. This thing rides better than my wifes benz !!!! Dave
It does make a better ride but definitely limits your ability to get in some tight places. I grew up driving tandem day cabs and this truck can give you the pucker factor at some docks.
In most cases it's for that cool "Look'n Large" look, but it's h!ll on the fuel mileage.
Some flat bedders will load long loads forward over the open space to avoid over length permits.
I ran NYC every week so it was out of the question for me and I was too much of a MPG nut to look that cool.