Some 2015-2016 F-150 vehicles may exhibit a vibration on acceleration or cruise that is originating from the driveshaft and/or rear axle. During preliminary inspection look for visible driveshaft damage, alignment of the axle pinion flange to driveshaft flange yellow dots, and that the rear driveshaft flange sits flat on the axle pinion flange. If no issues are found, refer to workshop manual section 205-01 to continue with driveshaft diagnosis and testing.
