Clean and adjust the rear drum brake shoes. Most common cause of brake shakes

 

could be but you feel it in the steering wheel mostly.

 

What happens is.........
When the rear drums don't get adjusted with every oil change, the front discs do ALL of the stopping.
This causes the front rotors to warp.
The cure is getting the rotors turned AND keeping the rear drums adjusted.
Enjoy

 

When the rears are not working you do feel the vibes in the steering wheel. The other cause would be bad LCA bushings.

 

4 weeks on the LCA's, never had the rear brakes open so that may be the issue. i know the fronts are getting thin. Most likely I will do front and rear just so I know it has been done.