Anyone use a QA1 K member on a 74 Duster
Exactly , lots of newer car designs utilize this type of sub-frame attachment , however using much thinner steel than QA1. Some modern vehicles even have isolated rubber around the ferrule , Look at a modern LX rear sub frame.I used a machined washer from a late RAM P.S. rack mount hardware that fit the tube perfectly in the front and extra thick 5/8 washer on the rear K bolts and torqued to 135 ft.lbs. with upgraded , slightly longer grade 8 , large flange bolts. Really locked in K .The front end stiffness of my B body is noticeably more ridged.Very happy with the set up. Ill get some pics , also the steering link doesn't rub my oil pan any more.
