Hi Y'All,
I recently purchased a 2017 XLT Screw 4x4 5.0L 6spd 5.5' bed with 60k miles. I'm loving it but I've noticed a real slight vibration randomly. It seems to occur between coasting and slight acceleration. At first I thought it was just a rough patch in the road, but it keeps occurring randomly. The vibration feels like when you drift off to the side of the road and the warning bumps in the road alert you, but 20x less noticeable. It seems to happen at any speed above 30mph.

I've searched the site and read a lot of vibe threads, but can't find any that match my case.

Any thoughts?

 

I had the exact same problem on my 2017 XLT 3.5 10 spd 6.5 bed. It would happen around 45 to 50 mph while coasting or slight throttle. I brought it to the dealer and they immediately new the problem. They changed the rear ring and pinion as well as the bearings. It was a drastic change.

 

My 2017 3.5EB 6.5Bed was drive shaft. Same speed quoted and mostly at coast.