I was wondering if a stock rear set from a 2000 900S would fit onto my 2005 620.  The part numbers are "almost" identical as is the part.  The only thing that worries me is that the part numbers are one off... the 2000 900S is 824.1.024.1A and the one for my 620 is 824.1.024.1AB... Can anyone shed some light on me here.

If I remember right, the letters at the end are a color code.  Parts the same color might not be

+1 to color code