[BCreekDave]

Originally Posted by 70post

I don't think GM did any of it....meaning my bet is that the roll steel sourced for the dust shields was specified to be galvanized (at the mill,etc). Then the pieces got stamped out from the rolled sheet steel.

I'll try to get a pic or two of one of the galvanized dust shields I referred to above.

Seems to me that if the roll steel was galvanized and the stamping happened later, that the cut edges would be very prone to rusting. Most moderately used ones that I have seen do not show evidence of this.