Its an srt not an slk lol but yea im gonna get some 10mm from rob. The clearance off of the bolt from the suspension was too close for comfort anyways. Now I have another question when I pulled it out of my garage this morning there was some rubbing. Im assuming it is the rear lugs on the parking brake but when you guys ground yours down how did you make sure the thread wasn't mangled so it could still feed back into the hole?