They did that to us recently too. Sucks.
How have yours held up?
The inner nut came loose on mine so I tightened it and nik'd the thread to keep from backing off. Handy as heck they are.
I think I paid like 13-15 dollars each for them so I now change them out once in awhile. I used to wait till I started getting shocked from me blowing transmission fluid and aluminum chips into them. Lol.
