So I've had a shake in my truck when I get to about 45 or so and sometimes I don't notice it as much but I don't feel anything in the steering wheel just in the passenger seat and floor so I'm assuming it's the one of the rear tires, and I was checking my tires today and the rear passenger tire looked like it was missing a weight but there is already a weight on the front and one on the back of the tire so I'm not sure if it's really a weight missing or not I'll share the picture to see what everyone thinks