Help me diagnose my wobble

I’ve got a pretty significant shake at around 55-70 mph. It seems to be while I’m on the throttle. When I let off it seems to go away. I just had brand new tires put on and an alignment done. I’ve got an abs sensor on the right rear that needs to be replaced according to the scanner which oddly enough is where I seem to feel the vibration from. I could be wrong. I checked the drive shaft and the u joint seems good I have no wiggle in it. Any ideas?

 

wheel balance issues

 

Do I need to get it balanced with the road balance or whatever it’s called.

 

Yes, it will fix the issue.
Road force balance..

 

Sounds to me like you have a wheel bearing going bad. Jack it up and try to wobble it, bet you have too much play in it. That is likely what chewed up the ABS sensor as well. I'd replace bearings on both sides.

 

Do you happen to back a boat in water? Often water gets in the axle vent. That can be avoided with a vent relocate procedure.

 

I know you said you checked the u joint but did you check the carrier bearing?