The truck developed a nasty driveline vibration at about 2000 RPM going down the freeway, causing the dashboard in particular to rattle and resonate. Stabbing the accelerator up to 2500 RPM, or simply lifting and coming off the pedal, would bring the truck out of resonance with an audible metallic clanking as the driveline unloads.Continue reading “Driveline resonance |OBS F350 7.3L Powerstroke SRW 4×4 rear driveshaft to pinion yoke ujoint repair”