The tough part is you may have no indication there is movement until you force it to move. I don't think we are talking the same part as the lower control arm is on the bottom. We usually use a 3' pry ba to get it to move, (which it shouldn't).
As far as the body moving, It should pivot but not continue forward, if that make sense. Often a clunk is heard during this.
Thursday, August 2nd, 2007 AT 9:36 PM