Gary RV_Wizard
Site Team
In my opinion the difference that Isaac experienced is almost entirely due to the transmissions. The 4L80E in the P-series is nowhere near as capable as the Allison 1000 5 or 6 speed trannies used in the W-series chassis. Further, if that "recent model F53" was 2006 or later, it was a 5 or 6 speed as well. The extra gears in the Allison were a big advantage for Workhorse until Ford caught up with the 2006 upgrade.