Help destroyed 7 1/4 in a /6 dart

Then I suspect you had something wrong. Although they are a light duty rear axle, they will hold up pretty well behind a slant six. Plenty of people have had them with V8s and abused them and they lived, so that leads me to believe there's a problem somewhere. You sure you get it full of gear oil?
yeah i had it full but i still want a stronger unit so i dont have to worry about it breaking in traffic luckly both times were close to my house abd on quite streets but imagine i went to take off from a stop light in rush our traffic id get creamed