i guess this goes here? if not mods feel free to move. anywho, on my 1998 k2500 i have a little slop in the steering gearbox and was gonna tighten it up a bit by loosening the jam nut on the top cover and tightening the "stud" down a little...i messed with that thing for a while but can't figure out what size the stud is? and is it an allen or torx? any help is much appreciated. thanks!