Chassis ECM Lock Rear Differential Fits 19-25 BLAZER 5050122

BLAZER 19-25 Differential Lock; (rear differential). CT4 20 Differential Lock; (rear differential). CT5 20 Differential Lock; (rear differential). XT4 19-24 Differential Lock; (rear differential). ACADIA 18-23 Differential Lock; (top of carrier).