Steering wheel shake

[nebilex]

I had a steering wheel shake during braking that I narrowed down to lower left front control arm. I put new front upper/lower control arms and ball joints (for both left and right side about 2 month ago, car has 155k miles). I had the alignment done and everything feels nice a tight. This is my wife's daily driver so I don't drive it often enough to know when things start to happen. I drove it this past weekend and notice a slight steering wheel shake at 55-60mph that goes away whenever i'm above or below that threshold. I have fairly new front pads, i was told my rotors were ok when I got the front pad done by the mechanic. I am planning to jack the front and make sure none of the controls arm are going bad. (disclaimer: i used Karlynn brand control arms from pelican parts) I don't think it's the control arms but won't know for sure until I check the wheels play. Any other recommendations as to whatelse I should check? Thanks