Freehub Buddy Dust Shields:

Reusable Dust shields;  O-ring sealed dustshield that seal better than the original. Available in four sizes going back to the earliest FH, most 7 speed / 17.6mm I.D., early 8 speed 20.3 mm; late 8 speed and all 9 speed  = 18.3mm cone opening with labyrinth lip and internal rubber seal. 2002+ XTR = narrow 20mm cone opening , single seal

                                                                                                                   Each are……… $6.

The whole groupo  (FHB, DS and soup) can be bought as one kit saving $2 (5%) for  $41