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When I bought my 5 ton, I couldn't get the back sliding windows open for **anything**.
Started prying and thought "that's a good way to break glass", so what I did was remove the entire assembly, took the window frames apart (4 bolts, very easy), removed the glass and gaskets from the frame THEN started the prying etc.
Removing the glass allowed the frame to flex enough to break free. They had frozen in place due to not being used.
I cleaned the frames, sprayed a little silicon lube and worked them back and forth to ensure they're free and reassembled.
Cleaned the old sealant off of the frame and truck, applied a good flexible sealant and reinstalled.
Now they slide very easily open and closed!
**protip** You will need a friend to help remove the window frame as it is held in place with through nuts and bolts.
Started prying and thought "that's a good way to break glass", so what I did was remove the entire assembly, took the window frames apart (4 bolts, very easy), removed the glass and gaskets from the frame THEN started the prying etc.
Removing the glass allowed the frame to flex enough to break free. They had frozen in place due to not being used.
I cleaned the frames, sprayed a little silicon lube and worked them back and forth to ensure they're free and reassembled.
Cleaned the old sealant off of the frame and truck, applied a good flexible sealant and reinstalled.
Now they slide very easily open and closed!
**protip** You will need a friend to help remove the window frame as it is held in place with through nuts and bolts.