If you have oreilley's, rent their 2/3 2 ton hub puller, easy as pie. Assuming you have the timing chain off already.
1.Remove injector lines. Just get them out of the way.
2. Break the nut loose on the sprocket. Remove the nut. It's 19mm socket.
3. Get the hub puller on there, tight the bolt and it will pop loose easy. Make sure you don't loose your sprocket key.
4. Remove all your fuel and exhaust lines from the pump.
5. Then you got 2 nuts on either side of the shaft, backside of where the sprocket is, and two bolts where your dipstick is.
6. Slip it out. Easy does it.

install is easy, you gotta time the pump after you get the timing chain back on.