Window roller

Better picture of plastic piece in the seal. Two of these in a set (one from each side) held together with a metal pin trapped between them. One set at top of glass (hole seen in OP picture and another near the bottom of the glass) - 4 plastic pieces and 2 pins per window. This stuff is only sold in sets for both sides and whole kit is a bit more than $100. I would not go through all the work of taking this stuff out and then getting it in and adjusted without replacing the whole kit for one side. I have a couple of used plastic pieces and they are hard and brittle - could break at any time and then here we go again...

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