Steering wheel shakes, Need to pick ur knowledge Options

[SUNAB914]

Ok, 74 that has steering wheel shaking when reaching speeds of 55mph or more. I have changed the tie rods, struts, ball joints are good although I have new ones standing by. Front wheels are getting eaten on inside of tire. I wasn't able to check alignment due to the alignment tool was broken at the place I went, but they will have a new one in the next few days. I will take it back to recheck. Everything is tight and can't figure out why it is doing this, so far. Before I left we, rotated rear tires up front, but it still has the shaking, not as bad but there. Tires are dead on balanced and they are new. 4000 miles on on four.
What do I look for next?
Thanks for your input.

[BMXerror]

Umm, I'm surprised nobody has brought this up. I've had shimmy problems before and it was because I didn't properly torque the lug bolts. Since they're lug centric wheels you have to be really careful to make sure the wheels and bolts get seated together properly or else the wheel will run off center.
The way I do it is torque them to 50 ft/lbs, then I knock the tire with a sledge hammer (Don't hit the rim) around the circumference. Then I torque them to 100 ft/lbs, and do the same thing before going to final torque.
Hope that helps some... BTW, the tires wearing on the inside sounds like toe out to me. If the steering is really twitchy then that's probably the problem there. But it sounds like you've got two separate problems. Anyways, good luck.
Mark D.