Anyone use a QA1 K member on a 74 Duster

I don’t know why anyone would want to use this K. The mounting is what I feel is seriously lacking. The OE k has double wall precise holes with tapered washers. The QA1 has sloppy tubing and long bolts creating a cantilevered mount. How is it that Mopar make 100s of thousands of Ks that fit perfectly and QA1 has to use tubing for mounts. Seems sloppy and weak to me.