Who's in the "I broke a 7.25" club?

The rear end was the reason I sold my 65 Barracuda that I bought new. It was all Formula S equipped ( except for the S badge) 4 speed with the Sure Grip 7-1/4 " rear end. Just before the 5 yr, 50,000 mile warranty was due to expire, I heard a noise or whine start up in the rear end.. I sold the car. About two weeks later I saw it broke down on the highway. The rear end had given out. The buyer contacted me, and do you know, he was able to get the rear end replaced under factory warranty. I guess they were designed for a 50,000 mile life.