you will most likely need acetylene torches.
i just did a 1999 grand cherokee.
remove 33 mm bolt. reinstall bolt a couple threads to prevent pitman arm from flying off. remove pitman arm. you will probably need to heat it red hot where it meets the shaft. using a breaker bar with a persuasion pipe on end helps on the removal tool. remove dust cover by tapping a flathead screwdriver with a hammer and deforming it enough to get an ice pick with a 90 degree bend under it. remove snap ring. turn steering wheel back and forth will generate enough pressure to force seal and washer out. refrain from turning wheel all the way in either direction. reverse procedure to reinstall.
Replace the whole rack, it would take speical tools to replace seals
you can, but you will blow the seals in the steering ,and then have a bigger problem that you have now
Clean the power steering are real good check for where the leak is coming from and go from there. For example if a hose is leaking replace hose, if power steering pump seals are leaking replace pump, exc.
how to remove a power steering gear box for a 1990 ford ranger 2.9
Transmission seals? front yes, rear no. Engine seals, yes.
Replace water pump and gasket
Seals are probably shot. Replace the pump/reservoir assembly.
The hydraulic seals in your power steering will be eaten away by engine oil. Your power steering will start to leek and eventually, it will not work at all.
Where is the leak? From one of the hoses? Replace it. From the pump? buy a rebuild kit for $12.00 and rebuild your pump or buy a rebuilt pump for $50.00 and swap it out. From the steering gear box? Remove it and replace the seals or replace it with a rebuilt box.
In general, repairing a steering gear is not recommended for the casual mechanic. Rebuilt steering gears are available at a reasonable cost. A leaky pitman shaft seal is indicative of internal damage. The seals do not usually fail without something else acting as a catalyst. You'll be far better off if you just replace the steering gear. And while you're at it, check the hydraulic fluid for any contaminants. If anything is floating around in the power steering pump and/or the hoses, it would be a good idea to replace them all since it will just cause the new parts to fail prematurely.
it will cause you seals to ware out
generally this means that the seals are worn and either need to be replaced or could be more cost efficient to replace then entire unit.