Recently bought a 2019 Silverado 1500 LD with the 5.3 and 6 speed. Have been getting a clunking/thud from a dead stop since day one. Checked u bolts as I’ve read loose u bolts have been an issue with these trucks for whatever reason, still same deal. Seems worse from takeoff on an incline. Any input would be appreciated. I have an appointment to have the dealer look at it. Have zero faith in dealers though so here I am. Thanks in advance for any insight.