I have a 2007 FJ and 4 wheel Parts installed the Pro Comp "3" lift today with a set of Pro Comp 285/70 R-17 A/T tires on a set of Pro Comp 17x9 wheels. The guy that helped me called me this evening and said they have it done but there is a shimmy when driving. They did an alignment and balanced everything. He said there might be something wrong with my rack in pinion and said he heard some popping in my gear box?? I have 40,000 miles on this vehicle and have never had any issues with this.... The sales guy said he would put it back up the rack tomorrow and see what they could find. Any suggestions on what could be going on??