I have had a set for about a year, and have had some problems with the
mounting.  Namely, on the drivers side, the upper inboard mounting tab has
broken, no fix seems to be permanent and I suspect that exposure to the sun
(and heat) here in the desert southwest has resulted in a wee bit of
shrinkage in the black plastic.

Anyone know if it is possible to purchase just the plastic as a replacement
part?
or
Is there any known fix for the breakage?
or
Is there an alternative way of securing these at the "grille end?"

TIA

-Blaine