Thanks for all the info on my last question :) One last MAJOR question. The rims I like (8.5 x 18) are offered with two different ET (offset) settings. one is ET14, the other ET40. Which one is correct? If I understand this "ET thing" the ET40 will need spacers??? I was using 16x9 Borbets with an ET of 15. They fit perfect, slight rubbing when fully turned. Thanks again.