Went to install my SPC rear arms yesteday, the OEM camber adjustment bolt was not moving for me.

I was able to get the nut and eccentric washer off with impact gun, but I noticed the bolt had a groove in it so I wanted to make sure there isn't a locking pin or something somewhere that I missed before I take the impact gun or air hammer to it.

I suspect it's just rusted up. oh the things we have to deal with in canada...

 

There is no pin, the groove corresponds with a flare on the inside of the eccentric washer. Turn the bolts, turn the washer, change the camber. CHANGE THE WORLD.