Front end wobble with drum brakes

[orlowted]

Hello - I would first like to say that I have only been on the boards for a week or so and the help I have received is outstanding. It is nice to see such a knowledgable group of Mustang Enthusiasts here. Now on to my real problem (my winter project soon to start). I just got my 1965 mustang on the road this summer for the first time. It started 6 years ago as a 6 cylinder car and I swapped the front and rear suspension from a donor car. My first test ride in the car was a litttle scary...I had just put nwe drum brakes on it - and needless to say - I was not very pleased with the stopping power. When I applied the brakes - the entire front of the car shook violently. It did stop, but I am supprised that the hood didn't fly off. I took it to the garage and had them check my brake work and it all checked out fine. He did tell me that the ball joints were shot beyond recognition. I pruchased a suspension erbuild kit and installed it ion hopes of getting rid of the violent wobble. It DID help, but not 100%. I would say that it reduced it by 60%, but it still shakes when braking. I also noticed that my steering has a lot of play when driving. It feels really loose - not tight like a new car. I have power steering, but the pump is not on the car. I guess I really have 2 questions...
1. Will putting Disk Brakes on the car eliminate the wobble?
2. Would replacing the steering box make the steering tight again?
These are my main objectives over the winter and I want to do them right so I can enjoy the car next summer. Any thoughts will be appreciated.
Thanks!
TJ