I've finally gotten my steering rack out of my '08 without having to take the engine out.
Been working at this for the last 2 summers but didn't have a second vehicle so I always had to have everything back together by the end of the day and had been hoping I would be able to access the bushings without removing the rack.
I could get about enough acess to the 2 forward bushings (rear bushing halves popped out very easy) by disconnecting the lines bolted to the front of the rack with 2 fasteners (left lines connected to ports on the rack) removing the 3x 19mm mounting bolts, nuts and washers, inner tie rods (needed a 48mm crows foot, don't think there's a universal or over-the-tie rod tube style tool out there that is large enough for the flats) and disconnecting the lower intermediate steering shaft (remove bolt and persuade the shaft to slip off the rack) to slide the rack around enough.
Unfortunately, this wasn't possible due to the corrosion welding the outer sleeves to the rack; I live in Nova Scotia. Maybe somewhere outside of the rust belt someone might have a truck where the bushings will slip out much easier. A couple weeks ago I got access to a loaner vehicle and was able to park the truck for long enough to remove the engine bay components to allow the rack to come out.
Basically, the oil and coolant needs to be drained, the sway bar,
radiator, fan and oil cooler need to be removed (requires 2 replacement o-rings for reinstall).
Only need to disconnect sway bar at frame, but disconnecting links from lower arms does make it easier, the bar gets in the way while laying under the truck to work. I also broke the welds on 2 of the 4 blind mounting nuts inside the frame. Had to use a recip saw to cut the 2 bolts - Diablo blades cut like butter. Fished out the nuts to reuse. Having 20mm-ish tabs welded on nuts and piece of wire. Wire to position nut inside frame and start on bolt, tabs to keep nut from spinning by hitting side of frame rail.
Then there's some brackets for the oil cooler and power steering lines which need to be undone as well as removing the feed and return lines from the ports on the rack and of course the steering shaft needs to be disconnected. Once this is done, the rack slides out pretty easily by shifting it slightly to the passanger side and then pulling the driver side forward to clear the engine, followed by the passanger side (had the rack at full lock to passenger side to get access to the lower steering shaft bolt and forgot to return it to centre before I used a hammer and 8mm rod to tap off the shaft. Be careful not to damage the plastic dust cover and key so you can reinstall the shaft to the proper position.)
Lookup the Febest replacement part on eBay or somewhere and you will see what the factory bushings look like so you know what you're working to get out. I used the Superpro kit, but the design is different from the factory design.
Since the factory bushings were seized in good, I ended up using a torch to heat the inside of the inner sleaves for a minute to soften the rubber enough to use a screw driver to push each half out. I originally used a recip to cut off the exposed sleeve flange from one half and then a 1 1/8" hole saw to cut out the inner sleaves (outer sleeves will protect the rack from the saw). I had to torch and dig out some rubber to expose the inner sleeve halves. I used a dremel fiberglass cut off to score the flange of the outer sleeves, my recip to score the inside of the sleave and then use a cold chisel to separate the flange and "peel" it back off the inside.