For 1995 wagon,

1) pop the lens cover of the tailgate light and then unscrew the screws next to the light bulb. There might be a screw behind the light hosuing, I forgot.
2) remove the center plastic upper panel trim of the trunk.
3) remove the left and right side upper panel trims.
4) the 2 tailgate structs are now visible to you.
5) have someone or use a long piece of 2x4 to hold the tailgate at it's highest position to release the tension on the structs until the replacement is completed!!!!
6) pop the structs out with a bit of force.
7) install the new structs.
8) ask the person who hold the tailgate to let go or remove the 2x4.
9) reinstall all 3 pieces of the trim panels.
10) done.

Ching-Ho Cheng
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1995 855 NA, Bilstein Shocks, K&N Filter, E-Code Lens