re: OT Mechanics - 1999 Jeep Wrangler Question

You really might be ok just getting a reputable shop to rebuild it. Pretty sure you have a 32RH if you have a 4.0 I6 which are pretty much a dime a dozen. Did you pull the dipstick to check the fluid condition? Was the fluid dark or had a "burned" look to it? Was this a slow deterioration or a sudden thing? You can check for transmission fault codes with a code scanner or by cycling the ignition and counting the flashes on the instrument cluster. Contrary to what some here might tell you the 32RH is itself a tough transmission, you are more likely to have problems with the solenoids and sticking valves in the valvebody which are actually a fairly straight forward repair even for a DIY'er.