Two different types, one is held on with clips and the other one screws in. Support the hatch so you can work on it. At the end if there is a clip around the end of the shaft, it pulls off. The shock...
depends on what is wrong.
If it is the gas filled hatch struts then they are easy.
They eventually go bad and cannot be rebuilt so you have to either buy new ones or go to a junkyard.
Place...