Years ago, when first introduced, the MII from end was only available for pre 34 rods. If you look at the size and weight of a MII vs. Early rods, they are fairly even. Other than poor installation I don't remember this issue ever coming up. Now the MII is available for just about everything. The MII was never designed or engineered for that kind of weight and stress and that now we have failures. Just look at what the front end was on: Pinto's and Mustang II's, hardly a Hi-Po front end design no matter how many coil-over shocks, ect, you throw at it.