Installed the shocks this afternoon. Bilsteins were toast. Driver front was almost totally locked up while the other three were easily compressed. Surprising the Ranchos don't come with instructions but here's what you do if you haven't done this before:
The major shock nuts/bolts require a 15/32 open end wrench & a socket. For the rear shocks you will also need a minimum 3" socket extension. The top shock nuts on the OEM shocks require a 15mm open end wrench. I used a 7mm open end wrench to hold the notched front shaft shock shaft. You don't need to remove the tires to replace the shocks but you will probably need a jack to raise the corners of the AV when you try to install the new shocks as the new shocks are difficult to compress while you're tryiing to insert the bolts. For the front OEM shocks compeltely remove the upper/lower shock bushings. The Ranchos come with new bushings and washers. Apply one steel washer, cup side up, on the threaded front shock rod. Then apply one red bushing with the ribbed side up. Insert shock assembly rod into upper shock mount. Slide the other red bushing, ribbed side down over the rod. The slide the other steel washer, cupped side down, over the rod. Apply the nut (14mm open end wrench). Tighten until the bushings are compressed to the point where they are the diameter of the steel washers. Reuse the OEM bolt/nut for the lower shock mount. For the rear shocks, youreuse both the top and bottom OEM bolts/nuts. The driver rear was the most difficult because the filler hose to the gas tank takes up a lot of room. Total R&R time was about an hour. I've only taken the Ranchos on a brief trip through the neighborhood--ride is much better.