Rear Disc Brake Caliper Assembly 34mm BoschHolden Astra TR 1996 to 1998 Disc/DiscHolden Astra TR 1996 1997 1998 Disc/DiscThis caliper only replaces the 34mm Diameter Bosch caliper. If yours is a different size or different brand, contact us for further help.All Years 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005