LAND ROVER GWC1312, RTC3627. Type Wheel Brake Cylinder. Thread Size 10 X 1. Material Grey Cast Iron. BRAKE FIT BWC8161. BRAKE PARTS INC. 5264. Fitting Position: Rear Axle Left. Fitting Position: Rear Axle Left; Construction Year from: 09/1986; Construction Year to: 08/1988.