From the picture this looks like the old style rear hub. Do you know which one you have? My preference was the new hubs (the front was redone in 2005 and the rear was done in June 2000) Thanks
The end caps are silver vs black. They changed alot about the rear hub. Cut 78 grams, changed the paws which reduced alot of the rear hub noice and about 1/2 of the internal friction.
From the one picture I had it looks like the center of the rear quick release is silver, let me know if I'm wrong.