CM2350 factory file comparrisons...

[JimT]

Having worked for JBHunt I know they like to play with some of the settings in the ECM "for efficiency". Driver rewards, cruise droop (i think that was the name), etc..

Also, last I knew was back in 2015 they were spec'ing their trucks with 2.90ish rears and 10 speed manual's. Back then all the trucks were governed at 62 but they were letting the driver rewards boost you up to 64 if you got higher fuel mileage. That kind of combination will never zoom up a hill. I didn't care for the freightliners they tried back then, although those Prostar+'s were pretty nice to drive. Not sure what specs you have on your trucks, but JBHunt liked their fleet to be mostly uniform and interchangeable so they could move equipment between accounts.