sliding windows

#1
Recently required '83 Xplorer with sliding windows. It had not been used in a while. Sliding windows are not working properly. The stuff on either side of glass seems dried out. I tried silicone spray. Any suggestions about what might help them slide more easily.
 
#2
sliding windows

Hi, Trudy: The silicone sounds good to me. Might need several applications. I would clean the tracks thoroughly with a light steel wool before applying to remove any dirt or corrosion. Will
 
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