not exactly sure, but i wanna say they are like 15 mm. if thats what your asking.
as for the steering im assuming you have power steering....did you check the fluid level? are your tires hitting or rubbing on the fenderwell anywhere.
no the tires are not hittin he firewall or anything but what i need is what size bolt casue i lost one and it was power steering but the pum when out so its just the steering thing on ther enow