From my experience just go for some original ones, they last the longest.
There are 2 types, most AU spec are the grooved type (33mm) but you need to check.
2005 Grand Cherokee: choose the correct bushings depending on whether your Jeep has the 30-millimeter or 33-millimeter sway bar.
2005 and 2006 Grand Cherokee with 33-millimeter sway bar: You must replace the old sway bar bushing mounting brackets with item # 52090474AB because of the new bushing design.
2007 to 2010 Grand Cherokee: Use only the 52089465AF 33-millimeter bushings
- See more at:
http://www.justforjeeps.com/frswbarb....s6RUc0Kt.dpuf
Grooved 33mm type original part numbers
P/N 05290637AA, 05290637AB, 52090155AG, 52090155AH, 52089465AF
Flat 30mm type part number
52089465AC