28 A, Bad shake... guidance please...

[mustangbrandon]

Hey there,

I just acquired a 1928 Roadster from my Uncle. He has had it since about 1970 and I have 8mm movies of me riding in the rumble seat (throwing candy in a parade. About 1975, around 4 years old. While it's not perfect, it's staying in the family. Cosmetically it needs work but it's solid as can be and you could eat off the bottom. Got some tinkering on it to do, but runs like a top.

But, for no apparent reason (that I can detect) it will start shaking fairly violently in the front end. Slow speeds it seems, as you can get it going decent and it won't do it. But when it does, you yank the wheel and it stops. So... Trying to determine where to start looking. I know this is vague in description but really the best I can explain it. King pins? Just worn linkage? I know that nothing has been done to the front end in the time my Uncle owned it, possibly before but he definitely didn't replace anything. This is my first Model A so I don't really know where to start looking and would rather have a direction in mind to start before I just take the whole front apart. Thanks for any help! And, while I love my hot rods, this one is staying like it should...