GD898 EBC GD Rear Brake Discs Opel Astra Mk5 GTC. EBC GD Rear Brake Discs. EBC Part Code: GD898. Opel Astra Mk5 GTC 1.6 [116bhp] (H). Quantity Supplied: 2 Discs. Fits Models with: Girling/TRW Calipers. Height (Laid Flat): 42mm. This listing is for a rear axle set of EBC 240mm GD Rear Brake Discs to […]