When the ball mount on your trailer hitch is rusted in place, don't whack at it with a sledgehammer. Here's what to do instead. Buy a can of CRC Freeze Off penetrating spray and an air chisel fitted ...

If the ball mount on your trailer hitch is rusted in place, don't just whack at it with a sledgehammer. Instead, buy a can of CRC Freeze Off penetrating spray, an air chisel, and a hammer bit, then ...