Truck shakes bad for 3-4 seconds and stops for 1 sec. Seems to happen from 0-30 and eases off until I get up to 60 and back at it again. Pretty much only does it while loaded. But it will do it empty sometimes it’s just not near as intense. Checked the drive line multiple times. Had a shop check it out as well. Also had another o/o check it out and nobody can see anything. Put new Michelin steer tires on it. 2 weeks ago I went over rough railroad tracks about 10mph and after going over them…















