2002 Ford Escape Front endproblems

[bg7385]

2002 Ford escape front end vibration noise popping and grinding noise.

When driving at speeds of 55 or more i have noticed a vibration in the steering wheel when you get to about 65 it stops as long as you keep the wheel straight. If you slightly turn the wheel at all the vibration gets a whole lot harder and you her a popping this sounds weird but you can also feel the popping in the wheel. This popping noise also happens if your setting still and turn the wheel sharp one way or another. Another problem I am having with the front end s a grinding noise when your going slow and turning sharp in to a parking space or doing a u turn. Any help would be greatly appreciated in figuring this out. I have had nothing but problems with the front end on this car changed wheel bearing 3 times,Hub assembly once and have also had to replace the front suspension cradle wont even keep going with the other problems I have had. Iy has 165,000 miles