while working on assembling my new (to me) trailing arms i noticed that on one arm there are 4 "drainholes" (for the lack of a better word) while the other one doesn't have any.
they both came of the same car and the holes do look stock ...
why would one need "drainholes" on a trailing arm?
if the welds are OK, there shouldn't be any water getting in there to begin with, right?
btw, the one with the holes is the drivers side arm ...
Andy