Crown does sell the generic Fork Tool used to seperate the "dogbone" links in the steering, however there's a way around this without damaging the seals, however I'd recommend replacing them anyway.
If you Take the caps, cotter pins, and nuts off, Crank the wheel (start with the left) you should be able to fit a mid sized chisel between the steer link and the axle frame. Hammer it in tight to hold pressure, and give the top of the "dogbone" link a good wack with a large hammer. The shock should pop them apart without damaging the seals, and I've found works better than that Fork Tool (aka Pickle Fork).
Repeat on both ends of both sides (left and right) and then the steer cylinder is free from the Knuckles, and you don't have to remove the wheels either. If you have a lift this should be complete in around an hours time.