Thread: 4-bar?

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As usual I am asking a novice question, so humor me a little and help out. I now have the front and rear four-bars installed (TCI) on my Brookville Model-A frame. When I put the bars on I allowed them to be almost fully threaded, but when I installed the Panhard bar on the 8" rear last weekend I noticed that it is out of line by about 10 degrees away from a right angle across the frame because the rear four-bars are fully threaded in. I realize that I will have to have the wheels aligned when I go for Inspection, but I need to "ballpark" the settings on the length of the bars. One idea I have is to count the turns on the full thread and then just set them at half so I get at least a half of the threads inside the bar. Even so, is there some other way to get the bars approximately the right length before a full alignment? I have wheels on order and will soon get tires and maybe (?) when the frame is up on the tires the four-bar angle will change and line things up better, but I don't think so because the frame is already sitting on the coil-springs.

Don Shillady
Retired Scientis/teen rodder