u/bbarton214

2016 - F150 - ecoboost - 4x4 - 4 inch lift (dealer installed before I bought truck new) 124,000 miles. When I'm on highway - feel a vibration or shudder - it's off and on - but seems to be getting worse - like running over a series of small ridges or rumble strips - pretty sure it's suspension. Looking for guidance on where to start looking - diagnosing what's wrong -