I have an 07 F150 xl 2wd 5speed. It has a vibration/shake at about 30-45 mph no matter if its in gear or neutral, or if its under throttle or not. It also gets a little worse when breaking coming down from about 45-30mph.

I was thinking at first it was the wheels out of balance since it was only at a certain mph range but the braking thing has me thinking rotors.

The truck has about 51000 miles on it.

 

I would think it is the wheel balance, if it was the rotor you would feel it in the brake pedal

 

And it would be during braking at any speed right?

 

Yes, and only while braking

 

Thanks for the input. I was thinking just that but I just wanted an 2nd opinion to be sure. Just have to get her into the shop now.