Steering wheel size.

I run a 16:1 manual steering box with 275/35/18's up front and a 14" reproduction Tuff wheel. Once you're going more than 10mph it's no big deal. Slower than that and steering inputs can get a little difficult, but it's not so bad that I intend to change anything. I just try to line up my park jobs right the first time :D.

With 17" diameter rims you won't be able to get to a 275 in the front, and with a 24:1 box you shouldn't have too much trouble.