Check with Kevin and his Team at KOR...Check Grand Cherokee Wrangler Cherokee Consultation Forum - Hard-KOR
They will have you install the BB and then take hub center to fender measurements (HF) at all four corners. Should be somewhere between 19.5" and 20.5" with a BB and stock spring sag. They will recommend shocks based on the HF you supply.
I ordered my shocks from him so the consulting fee was $0 and also got the rear shock bushing kit.
With the stock shocks and a 2" BB I drove around for a month and a half (on pavement) until I got the shocks sorted out. The only thing I noticed was that the shocks seemed to be limited in droop when going over speedbumps.