I replaced both of my front hubs with moog when I installed my superlift. Biggest hang-ups I can remember were removing the front rotors and having to slightly modify the plug on the new hubs where it meets the factory wiring. For the front rotors I'd recommend sraying some penetrating oil on the center hub and wheel studs then hit it really hard with a mini sledge to break it free. As far as the plugs go, I had to slightly trim a tab on them so they would plug into the factory (female) end. Had no issues since, been over 2 years now. Good luck!
2006 XK Commander, 4.7L V8, Quadra-Trac II, 6.25" Modified Superlift, Jeepin by Al's front UCA's, Rusty's Adjustable rear LCA's; 35x12.5R17 TOYO Open Country MT's; Method NV305 17x8.5 wheels