When I took possession of my 2019 2500 6.4 about a year ago it threw a weight off the rear driveshaft. Warranty put in a new complete shaft but only made it about 2 weeks before the new shaft also threw a weight. I put 2 hose clamps on the shaft to temporarily balance it until I got to a driveshaft shop (got the balance pretty close) Brought the shaft to a shop today but the tech had me come back to show me crappy the shaft was made & was 60 thousands out of round. He said he wouldn't even balance it because it was so bad. The tube & the yoke are not true with each other so the u-joint is always wiggling even when running straight. The tube is friction welded to the yoke so they cant be repaired , the quality control is terrible. I will have to call Ram to get a third shaft!