Left.W/AWD. Rear bracket bolt. Right.W/AWD. A threaded rod with a drive head (such as hex, 12 point, torx, etc) on one end used to secure the Differential Housing Mount to it's Mounting point. A threaded rod with a drive head (such as hex, 12 point, torx, etc) on one end used to secure the Differential Housing to it's Mounting point. Axle tube. Bushing. Carrier. Differential Housing. Insulator. Side.