Hi folks, I have been building a 31 roadster on a 32 frame, and I have a problem. During test drives, under deceleration or light braking, I get a shimmy which quickly grows into an awful shake, both front wheels, it's like some sort of harmonic or something. Scares the bejeezus out of you. It has nothing to do with the brakes. I am using a front solid dropped axle, with a split model A wishbone, F1 box. I took the whole front suspension out of it the other day and found that my spring shackles were too long, but I didn't find any other problems. Caster is about 6. Toe has been set from even to 3/16" in, seems like it's worse when toe is more in. Have any of you all come across this? When it happens, you basically have to pull over and stop to kill the harmonic. And you don't have to be going too fast, maybe 30. I am at my wit's end!