R380 Manual Gearbox Reverse Switch This listing is for a quality Lucas reverse light switch from Bearmach. This is suitable for the R380 manual gearbox fitted in the Land Rover Defender, Discovery 1, Discovery 2 and Range Rover P38. Please note that earlier Defender and Discovery 1 models with the 5 speed R380 manual gearbox used switch CDU51L which has 2 bullet terminal connectors instead of the sealed multi plug. We also have this type listed online. This corresponds to the following part numbers: AMR3918 This will fit the following vehicles: Land Rover Defender - With R380 Gearbox From VIN MA949875 Land Rover Discovery 1 - With R380 Gearbox - From VIN MA109621 Land Rover Discovery 2 - With R380 Gearbox Range Rover P38 - With .