Hello forum .. I have a part replacement question ..... 02 Grand Prix GT (40Aniv Ed) that Needs a rear Wheel hub ***'y ..... I see many listed w/o a speed sensor like a Timken part for about $98 delivered from online Autopartswarehouse.com. My local inside GM parts guy says he will sell me a GM part with the speed sensor for $274 + tx (which is a $100 below list) So 1. Does the rear have a speed sensor in the hub? 2. If I need one can I swap it to the new part ?? I asked my town CarQuest guy about the hub and he specifically said it listed nothing about a sensor (@127.08 + tx). I appreciate your help. Thank You. Harold H.