[Brantlaker]

I just picked up a 2016 F350 DWD 6.7 with a 3.73 rear and I traded in a2015 F350 SRW with a 3.55 rear the difference in milage is about 1-2 MPG and RPM Is really hard to tell. my old 5er loaded was 11255 lb and my new one is 17555 lb and I can tow up to 23500 lb as per Ford on my door sticker. If you are ordering a new on order it with the slide in camper package #471 it gives you 500 lb more pin weight with a higher spring rate and larger rear stabilizer bar.