Ball Trough Magnetic Jam Protector
[BTP1]

The best ideas are really simple. This is brilliant in it's simplicity. It works great in my JD. Although I sanded out the dents in the trough I still didn't like it plus this reduced the wear on the balls. Installing it couldn't be simpler and it stays in place without any problem. I have no idea what the magnetic function is because Pinbits was regretfully out of the chromium balls at the moment I ordered, but even when you don't consider that, this is definitely worth it's money.