[ERA Chas]

Thanks for sharing. Don't remember the thread but it would have gotten my attention!

I could see how hop could cause the driveline to 'stop/start' rapidly and shock the joint. But I suspect the joint had a problem waiting to happen.

I've had hop at the track (and street) on occasion but never a joint failure. The IRS joints take that pounding also. Guess I've been lucky but all the zerks get grease every 2nd year.