JE Reel makes upgraded replacement CV joints, but they are expensive (
http://www.reeldriveline.com/). I just installed the pass. side one this past weekend. Kinda pricey, but better flexability and more durable. Places like Napa should also carry replacements.
I've had success with AutoParts Warehouse online:
Auto Parts Warehouse CV for Liberty
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-oooooo- ---Craig, L.O.S.T. #CT068103
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http://jeep.allgris.com
O||||||||O ---'02 Sport 4x4, 5-spd,
[]--------[] ---2.5" BDS lift, 245/75/16 MT/Rs, Moab Rims, Locked and Regeared!
[]_____[] ---The list got to long, go to my web site for more!