But wait, there's more-> What the OP needs to get smart on options is the order guide. Google for "Ford 2017 Super Duty Order Guide". It has all of the same order codes that the dealer will use, and shows combinations allowed or not allowed. There is usually 2 versions during a model year called Job 1 and Job 2, and a few things will change from one to the other. Little things can change other things like a 2012 F-350 SRW Diesel would be rated for 11,500 with all terrain tires and 11,300 with highway tires--it will show that kind of stuff.