Quarter window glass pads?

I redid the quarter window rollers and regulators
on my dart last weekend and noticed when I took
the glass out that 2 of the 4 bolts had a plastic
pad on the side opposite the bolt head. The bolt
has a plastic pad on it too. I am guessing these
were to take up any imperfections in the glass
holder where it holds the glass. Should I make
2 more and add those in or do most guys go
without? Seems like if it had them from the factory,
the were missing for the last 30 years or so.
Author: admin