Normally...the rack swap is pretty simple. However, the addition of the Rancho complicates things. I had the same problem and you will have to pull the torsion bars, drop the lower crossmember, and Lower A-arms, to access that bolt you show in the picture. This is a huge oversight from Rancho IMO, and I considered notching my crossmember to make it easier for future swaps. I think you could cut a notch in the crossmember and reinforce it with a short piece of 2" tube, then get the thing re-powder-coated. This mod would allow room for the bolt to pull out with the front suspension in place. During this repair I decided to do the SAS so I never pursued the crossmember mod but, if you plan to keep the Rancho...I would do it.
Its important to park your H3 with the wheels totally straight and the steering wheel centered. DO NOT ROTATE THE STEERING WHEEL during the rack swap. This will cause expensive damage to the turn-signal assembly, and you will have to replace the entire smart switch. GM sells a small tool to lock the column, and I advise getting one. My rack came with tie-rods installed and they were adjusted damn near perfect right out of the box. My advice is to install it as-is, and don't play around with the input shaft...you could get it "off-center". The steering system is very sensitive, and everything needs to be installed "straight-up", and "dead-center". When you get done, and back on the ground...a piece of string works great to set the alignment.
The PS lines are a no-brainer. Filling & purging is another matter, however. The system will scream and chatter at start-up and you need to keep it full until all of the air gets pumped out of it. Cycle the steering back & forth to work out the air, and keep topping off the reservoir. Given all the talk about factory spark-plugs, tranny-fluid, etc...I was afraid to stray from the factory PS fluid. I have no idea if its something special but, rather than take the risk...I used the correct Delco fluid. I have no idea how you could screw up a sensor on the PS system...didn't know there was one.
