New felt for glass run channel install?

Yup!

I used these parts.

First, get a 25 watt soldering iron with a scalpel tip and use it to cut holes for the tabs. Much cleaner and less risk of causing long cracks in the plastic as that will ruin the moulding.

It is made by Weller and looks like this.

View attachment 1716188150

They are going to be tight initially but will ease up with use.

I coated the edge of the window and the felt with a light coat of silicone spray that made a difference.

Pre- fit the silver studs into the white plastic guides before using them as the holes may need to be reamed out a little. (very tight fit!!)

Hope this helps!!
Awesome thanks! I’ll see if we have one of those soldering irons at work.