I was wondering which would be the best wheel spacer for my truck. I have a 7.5 inch lift and 33 13.50's rub at full lock in reverse. They don't rub when turning at full lock forward just reverse. I was thinking it's just the tire being so wide compared to a 12.50. I plan on getting 35 12.50's and before i want to make sure which wheel spacer i need in order for no rubbing at all, comments and answers needed!!