top part of sidewalls is being rubbed by fender well yes. Not necessarily the top of tire although a small part of the top of tire does get rubbed, but mostly top part of sidewall. So the spacer would help this? I can notice that under a small load it does rub top part of sidewall near thread area. Is it difficult to put spacers? How did you manage to put 20's with no rubbing, you using spacers. I plan to go wider maybe 295 or 305 so want to give self plenty of room