Re: 1996 Grand Cherokee Laredo rear rattle
I'd start with looking @ the shocks. Possibly worn control arm bushings/swaybar end links like you said. Get underneath & start rocking the Jeep around (I usually push with my knees/feet), put a pry bar on some things & look for whats loose.
1994 ZJ, 3.5", 33" Trxus MT, HP D30 4.56, XJ D44 4.56 w/Detroit
2004 WJ Ltd. Stock QuadraDrive 235 70R17 Cooper AT3