Phoenix - AZ Differential on 29th and Weldon, not the other AZ diff.
Mesa - Letzroll Offroad, Andrew.
Call your local shops about regear cost because depending how busy shops are down here you dont want it to take an extra day and spend the night lol. Also, consider calling a shop to see about getting an 8.8 and 4.88's. Might be worth waiting to save up the cash to do it. Both of the shops above can do 8.8 swaps, or they can make up the 8.8 to go and you install.
93' YJ 2.5L, 4.88's, 8.8, E-Locker & LSD