I was driving and noticed my steering wheel was pulling to the left a lot, so I went to take a look and my driver front tire was completely flat, the whole was to big to patch so I bought a used 205 55 r16 tire and got it balanced. Put it on and now every time I drive I get steering wheel shake no matter how fast I am going. I made a Video to show whats going on please watch the video. Thanks please help me figure this problem out.

1998 Volvo S70 Steering Wheel Shake problem - YouTube