Putting on locking header bolts has to be one of the most frustrating things I done to my truck. I've been at it for about 4 hours now and only have the driver side locked on of course I did the easy side done first. I had to feel like I've accomplished something, lol. Just venting a little time eo go and finish up and lock the other side oh I'm putting on the stage 8 bolts with the lock washer and e-clip in case anyone was wondering.