F 53 chassis rear differential S110

I have a 2006 F53 with the same rear-end you have. You will only need the special large socket to fit the lock nut and then the same socket fits the inner nut. I had to change both on my seals because they started leaking. I did buy a large seal installer from Harbor Freight and the seals I ordered from Advanced Auto Parts on line. I ordered the socket online and its a 3 1/4" part #1909. The only problem I had was installing the new seals was if you beat on it to much the inner spring can pop out. Be sure to check them after you install it. My son had smaller hands and was able to reach in and pop it back in place. You will need to buy a quart of rear end grease. Its synthetic and I got it from Walmart. What I was able to find on line is when you are done and install the hub back on you tighten the nuts down to 90 ft lbs and spin the hub then back the nuts off and retighten to 30 lbs. Its going to take all day to do both or do one per day so you have more time to drink beer. Good luck because you can do it.