Vibration at very specific RPMs

[Starkhaus]

2022 Ram 1500 5.7 Hemi Non-eTorque 4x4 quad cab

I feel a vibration in the gas pedal and heel of my right foot since it’s touching the floor at about 1750-2250 RPMS and only right there. Probably more specifically 1900-2100. Once it passes 2250 smooth and anytime before 1750 also smooth and don’t feel a thing. Anyone got any ideas on that?

 

[Rick3478]

Resonance? Pretty common for the frames on these trucks to ring like a guitar string at certain frequencies. Some of the high trim levels have an active (electronic) cancellation system, mid-level trims have passive tuned dampers, and some base models may have nothing to mitigate it.