Wiper switch??

Has anyone ever found an exact replacement for the dash mounted switch for the 69-75 wiper motor? I got one from 4wd but its not an exact replacement by no means. I have tried calling Walcks for 3 hours now to no avail, Krage motorsport lists the same part number as the one I have from 4wd, mine is not broke but its getting so tight you can't hardly turn it. Don't figger I can take it apart and put it back together as the backs usually fall apart when you take them apart and there this old. If I can find an exact replacement I will try to rebuild this one as a spare.