I had a problem with my driver side brakes not compressing so i figured there was air in the lines, so i bleed them and it still wont compress. When im going highway speed and go to stop the driver side shakes and like hops VERY badly and i have missed my turn offs a few times cause im afraid of braking somthing. I need to get this fixed. I put new caliper on it cuz the bleed bolt stripped out and put new pads. Im not sure what it could be, someone put input please this is bad.

 

go ahead and replace both brake hoses and the other caliper, then have your rotors resurfaced if within spec or just replace them too

 

Well they have been resurfaced new pads and one new caliper, but the side with the old caliper is the one that is compressing and working. The side with all new is not.

 

Pull the brake line and check that the line is not blocked by having someone push on brake pedal. The new caliper could be bad? Connect the brake line back up and have someone step on the pedal while you verify that the caliper is stopping the rotor (wheel jacked up on that side). Bleed and look for signs of air in line.

 

Both brake hoses and the other caliper are needed. I do not recomend pushing used fluid back through ABS and master cylinder. Hose to bleeder with catch can to compress. Block pedal down a inch or so.
It is possible new caliper is bad but unlikely.