I was grinding off my perches and shock mounts on my 14 bolt, and I put a nice grind into the tube in 1 spot. Probably 1\8"-1\4" down into the tube, but it doesnt look like it hurt anything or went anywhere near all the way through. I'll probably have my buddy fill it with weld and I'll grind it smooth. Those perches do NOT want to come off. I got the shock mounts off easily, but the spring perches keep going and going. They are thick as can be. How thick is the axle tubing metal? 1\2"?