just the gear part? You can get one from:
Japan 09/1993-07/1999 TOYOTA CELICA ST20* 33-04: SPEEDOMETER DRIVEN GEAR (MTM)
General 11/1993-07/1999 TOYOTA CELICA ST20* 33-04: SPEEDOMETER DRIVEN GEAR (MTM)
Europe 11/1993-07/1999 TOYOTA CELICA AT200,ST20* 33-04: SPEEDOMETER DRIVEN GEAR (MTM)
Japan 11/1992-05/2002 TOYOTA CALDINA AT191,CT19*,ET196,ST19* 33-04: SPEEDOMETER DRIVEN GEAR (MTM)
Japan 06/1994-05/1998 TOYOTA CAMRY, VISTA SV4*,CV4* 33-04: SPEEDOMETER DRIVEN GEAR (MTM)
so it looks like you'll need one from a 205