Is there a way to move the knuckle up on the shaft? I have grinded down the bolt head so it don't touch. I also grinded the other end that has the notch, but I dont want to grind it so much that it ***** up the knuckle. Any suggestions. Would heating the header and denting it be the best bet

 

maybe cutting and re shaping the header sounds like your best bet

 

new headers that fit sounds better