I guess I will be finding out....I am replacing my tie rod ends with a heim type joints...glad to see you back I know its been a tough one for you this past year...hope your doing well
My alignment specs are as follows7 degrees shouldn't be the cause as that's pretty much perfect for a long wheelbase car like your '55.
If it's aligned correctly, with enough toe in then you can eliminate that. Not sure what they set it at, but at least 1/8" to 1/4" toe in.
After that the death wobble is all about play in the steering components, so if all are new and tight, then I'd say it's down to either wear in the box, or too small diameter tie rod. On a wide car like yours the tie rod can flex in situations as you described just because it's probably close to 4 ft. long. So hopefully it's large enough, and thick walled enough to eliminate that too, and leave just the steering box as the culprit.
sounds easy enough, will try checking that tomorrow, thanks!The alignment shop is using factory settings for toe in (camber) which wont work for a straight axle. Needs to be something closer to 1/4" toe in. Get a couple pieces of tubing, or sticks that overlap each other and slide them out until they touch the tire sidewalls at the front side at 3 o'clock position. Then move them to the backside and see if you have about 1/4" clearance. If you don't then simply adjust until you do.
Art Morrison wrote me (see below email) that steering dampeners were not uncommon on gasser front ends back in the day. He said VW dampeners from JC Whitney were used. I put one on both my cars. I used pick up truck dampeners from Summit. My death wobble would bounce up and down real hard and scare the life out of me. Im not interested in finding out at 100 plus miles per hour that I should have used one so I put it on both cars.If I did it right, it should be on the money. I had a fuel line section I cut to length in the front, and adjusted until it was a ¼" in the rear. It was only 3/16" when I started, so it didn't take much to adjust. I sure hope that 1/16" fixes this, ha ha
Well, I drove the car home from Pomona today and had 3x instances of death wobble before I even reached the freeway- all happen around 40 mph. I got the car home OK without anymore incident, though it did feel "loose" and like it was vibrating in front, which isn't good. When I got home I lifted the front on jackstands and it appeared to have some end play before turning the wheels. I ended up tightening the adjustment screw a good turn and a half before the "bind" (resisting to recenter the wheel) occurred, so I backed the adjustment screw probably an ⅛ turn and tightened the jamb nut. I ran out of daylight at this point and didn't feel like taking it back out so I'll give it a try tomorrow, but the wheel feels much tighter now. at this point:How much side to side play in the steering wheel with the car sitting still? Careful not to tighten the adjusting screw too much, and bind the box, which will wear out the gears. I usually use a stubby screwdriver and two fingers to adjust the screw so I'm not tightening it too much.