2000 Geo Metro

REGULAR DRIVING WHEEL CAME OFF...REAR I BOUGHT THIS CAR FROM MY SON THAT OWNED IT 2 YRS. FROM 37000 MI...IT NOW HAS 52000. THE WHEEL FALLING OFF HAPPENED TO MY SON. THE CAR NOW NEEDS REAR WHEEL BEARING ASSEMBLY...NOTHING TO DO WITH WHEEL FALLING OFF...NORMAL WEAR. THIS VEHICLE HAS THE REAR WHEEL, SPINDLE, BEARING AND DRUM ASSEMBLY AS THE 1995 RECALLED METRO HCHBC W/O ABS. GM SAYS IS HAS THE UPDATED ASSEMBLY. I ORDER AND THEY SEND THE PARTS. THE BEARING HUB DRUM ASSEMBLY ARE NOW SEPARATE IN THE UPDATED VERSION. THEY SEND ME THE NEW BEARING/HUB...BUT THE DRUM, MINUS THE BEARING FROM THE ONE THAT DOES NOT EXIST SINCE 1995... THEY SAY THE NUMBERS ARE WRONG IN WAREHOUSING,,BUT NOT WHEN IT WAS MANUFACTURED... I ORDER AND THEY SEND THE CORRECT DRUM....HOWEVER THE COMPLETE ASSEMBLY WITH DRUM IS TOO LARGE FOR THE SPINDLE, WHICH CONTAINS THE OTHER BRAKING COMPONENTS. THIS VEHICLE HAS COMPLETE WRONG ASSEMBLY AND NOT THE UPDATED VERSION. THE 1995 GEO METRO 3DR HTCHBK W/O ABS, NHTSA CAMPAIGN ID NUMBER : 94V213000 .....IS THE ASSEMBLY THAT IS ON THIS CAR. I BELIEVE GM SHOULD BRING THIS VEHICLE IN AND INSTALL THE CORRECT PARTS. IF THIS WAS NOT OK TO BE PUT ON THE VEHICLE IN 1995 THEN IT SHOULD NEVER BE INSTALLED ON A VEHICLE BUILT IN 2000. AND...IN 2005 WHEN REPLACEMENT PARTS ARE ORDERED THE OLD DRUM ASSEMBLY SHOULD NOT BE AVAILABLE AS I UNDERSTAND IT IS UNSAFE. HELP.C. *NM