go and have them keyed at a machine shop and be sure to change out ur studs to 16mm cap capscrews this is because the cone washers need to seat down on the shank of the stud not the threds ive spent the money twice now because when i bought the ARP knuckle studs and went to put them in. and my cone washers seated down on the threds of the stud. now when ur just relieing on just the stud to prevent rotation with ur 35,s,37,s or 40ds that just not right. so i did some research and check out these two links and tell me its not a good idea. it just pisses me off i have a $80 set of ARPs and i cant do nothing with them
this link is to show u that the cone washer seats 8mm above the knuckle surface
http://www.pirate4x4.com/forum/showthread.php?p=9366828#post9366828and this link shows you where to mill a keyway into your knuckle and steering arms
http://www.pirate4x4.com/forum/showthread.php?t=852179&page=10
