I have been having this vibration and now it seems like it is coming from the front of the truck where I rest my left foot while driving. What is this vibration? Could it be the front of my Driveshaft/Bck of Transmission? Or A loose shokc mount? Or the usual clunk noise?

 

Is your truck lowered ?, if it is, did you check your pinion angle ?, when was the last time you had your tires balanced ?.

 

I have the back lowered with JLP shackles. I know I need to check the pinion angle. Tires were balanced a month ago