Ok so I go a 91 EF Hatch with a B16A in trade. When I got it, the vibrations were pretty bad (solid mounts).

I lowered it a little more and all of a sudden the vibrations are so bad I cant drive the car.

I've replaced:
Axles
Wheel Bearings
Spindle

Its not the motor mounts, it vibrates a lot more than that. Also, its not a loose wheel. The car has an aftermarket traction bar that's been checked and is all tight.

The serious vibrations ONLY occur in gear (not reverse) and is speed based (louder as you go faster). It does NOT do it in Neutral/when the car isnt moving.

Next step is to get the front wheels up off the ground to see what happens in gear when the car isnt moving. Also realize that a wheel may have gotten bent or lost wheel weights, but this vibrates waaaaay to much to be a wheel weight.