GMC R2500 Drum Brake Shoe Set. 1987 GMC R2500 Position: Rear;. 1988 GMC R2500 Position: Rear;. 1989 GMC R2500 Position: Rear;. Drum Brake Shoe Set. Bosch New Brake Shoe Set. Bosch Brake Shoes Bonded. Inclusive hardware: Pins and levers are included (where applicable) for easier installation.