If you have an old, tired, well worn truck, it would be wise to try to find where the noises are coming from and see if it poses a safety threat. Some things that come to mind are, broken springs, badly worn spring shackle bushings, worn king pins or tie rod ends.
Carl

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