I changed mine from above...PITMFA.
After removing the a/c lines and using a long extension, then a swivel, then another long extension. I wore the skin off my knuckles and it took 20 minutes to remove the old one and about two hours to install the new one!
Best of luck. Any chance you have a buddy with small hands or a G/F that likes to get her hands dirty?
93 Grand Wagoneer
5.5" Hybrid Lift/BDS CA's