I was wondering what the difference was between the two different spindles other than you can run 16" wheels with one and not the other. I know you lose turning radius with the 16, but do you as well with the 17"? I am looking to do a 2/4 drop on my truck, but I read that drop coil springs leave the ride pretty rough. I really don't want to lose turning radius either, but want to keep my 16" wheels/ tires for the winter. I basically want the cake and eat it too.