PSM E36 Trailing Arm Chassis Reinforcement PlatesListing is for: 1x Set of reinforcement plates Weld in . 125" laser cut steel plates with 3D scanned OEM spot weld connections for E36 BMW. These plates reinforce both horizontal and vertical surfaces around the trailing arm pockets to repair and or prevent cracking of the chassis. Left and right sides are included. We recommend installing the SubFrame Chassis Reinforcements at the same time, sold separately. These are already included in part #