A Rear Axle Wiring Shim is a thin, metal spacer that is placed between the rear axle housing and the wiring harness that runs to the axle. It is used to create a tight fit between the two components, which helps to prevent chafing and wear.Attributes: • Help to reduce noise and vibration caused by the wiring harness• Protect the wiring harness from the elements, such as dirt and waterApplications:A Rear Axle Wiring Shim is used to improve electrical conductivity between the wiring harness and the axle housing.