Got my HD torsion bars in the mail last week I should install them tomorrow. Fri night I installed the 1.5" spacers, installed new mounting bracket for rear bumpstops, added length to the lower links, and installed newly rebuilt and LENGTHENED driveshaft. The lengthened driveshaft allows me to lengthen the lower links to avoid all driveline vibrations on the highway without fear of the driveshaft spline coming out when rear suspension is extended.