It is a fairly easy job. Remove the trim around the tailgate opening. Remove the "header" at the back of the headling (it has two tabs that slide into slots in the overhead). Pull out the plastic pins that anchor the headliner to the overhead. You should now be able to see the forward pivot pins. Bend back the locking tabs. Support the tailgate. The clips at the hinge end can be removed now and the pivots on both ends of the shock removed. Slide out the shock and reverse the process. I bought a used pair at a wrecking yard and was able to remove them in about ten minutes with a borrowed pair of cheapy pliers. Just look everything over carefully as you proceed and it should be clear on how the proceed.