[Tx Firefighter]

For God's sake, buy your grommet at the GM dealer. They are MUCH more supple than the aftermarket ones and install much easier.

I had to repaint the cab on my orange truck because of a hard to install aftermarket grommet. The GM one was so soft if popped right in. That hard aftermarket one wound up costing me a bunch of time and money for supplies repainting the truck.