Difrntal assy mount bolt. 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 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 Suspension Crossmember Reinforcement to it's Mounting point. Automatic Transmission Mount Bolt. Part cannot be reused/reinstalled. Suspension Crossmember Bolt. HEAVY HX Flange HD REDUCED Body. Automatic Transmission. Crossmember Reinforcement. Differential Housing. Support bar. Transmission Bracket.