So I recently installed new control arms and 750il bushings....this fixed my constant shimmy but its back....now there is a constant shake almost at any speed....feel it in the front wheels...what else could be wrong? sway bar bushings? front sway bar?

front struts?

and front end alignment of course

Tires?

Rotors warped or bad pad deposits?

Center link. tie rods. pitman arm. steering arm.

The only thing you can adjust on the front is the toe.

tires and rotors and pads are out (are all brand new and only a few months old)

everything was fine until I started getting the shimmy from the worn bushings so when I got the new arms and bushing it went away now a weird vibration is back

What car? How many miles? Anything else been replaced on it recently? Ever?

Blown shock(s), bad tie-rod(s), bad idler arm, non-hubcentric wheels, knocked off the wheel balancing weights, etc, are all causes of the dreaded shimmy. It is almost never the brake rotors themselves.

Is everything torqued properly? Did you tighten the thrust arm bolt with the arm in it's natural ride-height position or at full droop? That will destroy the TAB pretty quickly.