In addition to All of the previous comments you will appreciate that extra TORQUE if you purchase a diesel however downside to that is gas vs diesel fuel/gal there are tradeoffs eithe way you go
I currently own a 2009 F-350 DRW and carried an Arctic fox 990. I added Air Bags, Roadmaster Sway Bars and Torklift Stableloads and it handled very nicely I can not comment on a SRW and while yes it will haul the 990 you have much better control wit...