How I finally fixed a wandering Demon

I rebuilt my first Mopar front end in the waning years of owning my 440-6 70 RR, which at the time had a 340 swapped in, about 1976. The darn thing would run fine for awhile, then with some miles on would start "shimmy" a little when applying the brakes. I screwed around and spent money, trued the tires, replaced the tires, trued the rotors, MORE than once!! --- and finally decided, with 140K on the clock, that there was simply enough play to allow this, from wear. VERY hard work. One side at a time jack it up and crawl under. I was about 27 at the time.

Somehow, in mis-communication, I had asked a local mech how much to line it up, and neither he nor I mentioned that it was COMPLETELY OUT of alignment!!! I'm sure I had told him that I'd replaced a bunch of stuff. I replaced everything that moved except the steering box, and the thing drove like it was new. IMAGINE THAT!!. Didn't shimmy either!!