Ok everyone. I need some help. Next year, Most likely Spring, I will take over the payments of my Dad's F-150 (I'll be buying it). It is a 2001 F-150 with the 7700 Package. (Basically a F-150 body on a f-250's frame) It has the 5.4 L V8 Triton. Should I go with the extra 14ft, and why so?