Dumb iron

A dumb iron is a "curved side piece of a chassis, to which the front springs are attached."[1]

Dumb irons are mainly featured on vehicles built before 1950, which had their front axle suspended on leaf springs. At the front of the car, dumb irons project forward, providing a location to attach the front of the leaf springs; The modern alternative is a suspension mount.

References

  1. ^ "Definition of dumb iron in English". Oxford Dictionaries. Retrieved 2025-06-30 – via Internet Archive.