I have one on mine. I am running 265/70/17 after the lift and pinch weld mod. One suggestion for the RRO lift is if you have access to a welder, tack the inner 2 bolts on both sides to the spacer. It becomes a PITA trying to get a wrench or socket on the underside while tightening the nut on top. If I had it to do over again I would have tacked all the bolts to the spacers while on the bench instead of doing it on the vehicle with the strut tower in the way.
Mine:2008 Grand Cherokee Overland 3.0 CRD...OME HD lift, JBA control arms, AEV Onyx Salta w/ 265/70/17 General Grabbers.
Hers:2007 3.7 Commander Graystone
2.25"RR lift, monroe 171377 struts, monroe 58646 shocks, JBA 6.7 control arms, Moto Metal MO970 w/ 265/70/17 Hercules Terra Trac ATII