Odd “vibration” during partial throttle deceleration

[chris51080]

I’m in the middle of another cross country road trip, and will end up visiting the dealer when I get home. That said, on the highway, when I let off the gas partially, I feel a bit of a vibration in the pedal/floorboard as well as a slight change of noise.

If I let off the gas completely, it goes away. It also goes away once I get give it enough gas to begin accelerating.

Any thoughts on this?

 

[XwerX]

Have the dealer look into the pinion bearing in the front differential. Mine started failing around 4k miles. Diff was rebuilt at 13k miles.