Did you replace the bushings?
How did you accomplish this task?
Sometimes those bushings are tough to press in, especially if the spring eye is not spotlessly clean and smooth.
This can result in deforming the bushing causing the inside diameter (where the bolt goes) to be too small.
Carl


1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission