Steering Wheel/Floor Vibration HELP

Hi all!

Been having a time trying to figure out what’s going on with my truck. 08 access cab 5lugger. Essentially it’s been having rough vibrating from day one. Originally it had the classic shudder from the carrier bearing. I had this fixed, along with that, the u-joints replaced in the driveshaft and it balanced professionally. I have had two sets of tires and had my tires recently balanced after the driveshaft was balanced as well.

The vibration I still feel is mainly more towards highway speeds 100km/h+ , it is very present in the floor and the steering wheel. I would say it feels loose at time, but also it can stiffen up and feel tight. I don’t want to keep throwing money at it, if the problem is going to persist. Does anyone have experience with this or know what my next step should be? Alignment?

thanks for the help guys!

-Adam