How to remove this nut

First off, berkeley you Photobucket. Now I have motivation to read the posts to figure out how to post pictures here.

BMW control arm where the ball joint has a T40 fitting in the middle and a nylock nut attaching the control arm to the spindle. One side played nice, the other not so much. With a T40 bit in the fitting on a breaker bar that is wedged in place against the frame and a crowfoot 21mm on the nut with a long breaker bar, all that happens is I am twisting/distorting the T40 bit on the way to shearing it off. I've also tried Kroil and an impact gun but the ball joint laughs and spins.

Other suggestions?

Cut it off if your putting in a new one.

Drill it out, 10,000 rpm cut off wheel? Be wary, aren't the control arms aluminum?

If you figure out hot to steal pics from PBucket, please let me know.

Dan

Split the nut with an air chisel?

Are you reinstalling the arm? If not, jack under it imparting some upward force (I'm guessing the nut is below the spindle) and impact wrench.

Sharpen your T40 bit. Angle grinder or bench grinder to square off the tip will get you a better bite. The jack method noted above works well just used it in my daughters Mazda 3 about an hour ago.

I had to break out the angle grinder when I did the passenger side on my E28. Sometimes they just don't cooperate. Arm was getting replaced anyway.

I thought this a flounder thread regarding some politician.

Thanks all. I tried using a jack but it still spun. A little torch melted the nylon out of the nut and all was good. Air chisel was on standby but not needed. Appreciate the advice.

All they ask is that we are not a-holes....