I had a similiar issue after I changed balljoints, rotors wheelbearings etc(they all needed to be replaced). I still had a rattle. My shocks are original so I thought maybe it was them. It ended. Up being the hubcap rim. I pulled off the chrome hubcap that went around the outside of the rim. The rattle went away. Lol
2004 Ext Cab, 4WD, 4.0, Auto, 146k. (4.0 engine is out of a 2009 Ranger w/96k) ( as of 3/10/2016)
2004 Ranger, Ext Cab, 2WD, 3.0, 5 speed , 4WABS, crank windows, no cruise, Edge 116k.(6/5,2014) (SOLD).
1999 Ford Ranger, Reg Cab, 2.5, 5 speed, 2WD, no AC, 150k (SOLD).