PSD on cummins??

[bigwhite6oh]

so today driving, i see a cummins, dually headed the other way on the road with this plate (a reconstruction using a website, not an actual picture, but for visual purposes)


...im assuming it was a company truck (but was not lettered) and this is his abbreviation. but obviously the first thing i thought of on a dodge? he must be jealous

[GM Duraturd]

he thought that having PSD somewhere on the truck would add power

[BryanH]

That's funny.............