Front end vibration 2015 PROSTAR

[Beardedtrucker]

Yesterday I noticed both steers have a visible vibration you can see without touching them. I’ve tried googling the problem but I couldn’t find anything. It’s not an absurd amount of vibration but enough to notice. No issues with vibration while driving. Just noticed when I was idling. Fluid in hubs are good. I’m a little anal about everything with my truck and just noticing it I figured that it wasn’t right. Just seeing what I need to check, and if serious how serious. Thanks!