Discovery t-case protection plate Gearbox and transfer case protection plate for Land Rover Discovery 2009/2016 by Rival 4X4.RIVAL's high-quality, laser-cut, aluminum alloy skid plates offer a lightweight, high-strength solution for underbody protection. With drillless installation, they are an easy choice for protecting Discovery's underbody from rocks, logs and scratches, and all those foreign objects you'll encounter off-road. Specifications: concealed mounting to minimize damage during off-road driving reinforcing folds provide maximum strength corrosion-resistant polymer powder coat finish installs on standard mounting points requires no drilling or modifications does not reduce ground clearance openings for water and dirt drainage openings for venting and airflow.