Get a tie rod separator. If you don't have one already, you can buy a combo kit (they are cheap) or "rent" one from AutoZone. You pay for the tool and they refund it when returned. I can't remember if you used the cotter pins on the castle nuts already. If you did, you will need to replace them as well.

https://www.amazon.com/OrionMotorTec...s%2C234&sr=8-7