2005 GMC C5500 Steering Problems

GM HAD A RECALL IN 2007 FOR MEDIUM SIZE TRUCK FOR STEERING BOX PROBLEM FOR STEERING WHEEL BEING OUT OF CENTER AND NOISE OR HARD SPOTS IN STEERING. THE RECALL NO. IS 07220. I BOUGHT THIS TRUCK APPX 2 YRS AGO NOT KNOWING ABOUT THE RECALL UNTIL A FRIEND SUGGESTED DOING SOME RESEARCH. VIN NUMBERS AFFECTED BY RECALL IN 2005 WERE [XXX]. MINE BEING [XXX] CLEARLY FALLS WITHIN THE RANGE. IT SAYS IF STEERING BOX NUMBER IS EARLIER THAN BUILD DATE IT HAS BEEN FIXED OR BUILD DATE IS AFTER SOME TIME IN 2007 THEY ARE OKAY.. MY TRUCK ONLY HAD 13,000 MILES WHEN I BOUGHT IT AND NOW HAS 20,000. IT SAYS IF MANUFACTURING DATE IS SAME AS TRUCK BUILD DATE IT HASN'T BEEN FIXED. THE STEERING BOX AND THE TRUCK HAVE THE SAME BUILD DATE APRIL 2005. (0405) I HAVE CONTACTED GM AND SINCE THE VIN CHECK COMES...