Well I've decided to weld inserts into the control arms for the bump stop and the steering stop. I hate to weld on these nicely painted arms but other than fabricating a new from bump stop boss I can't see any other option. I'll have to weld something onto the arms for the steering stop anyway. Where can I buy some blind 5/16-18 weld-in bungs. I've been searching but other than light duty ones at custom motorcycle places they seem non existent.