The Genuine GM AFM/DOD Lifter Tray Guides (Set of 4) are factory OEM components designed for LS and LT engines equipped with Displacement on Demand (DOD) / Active Fuel Management (AFM). These lifter trays properly retain and align AFM lifters within the engine block, supporting correct lifter positioning and valvetrain geometry during normal engine operation. This set includes four OEM lifter tray guides and is the correct replacement when servicing, repairing, or rebuilding AFM-equipped GM engines. Using genuine GM lifter trays helps ensure compatibility with factory lifters and engine block provisions during maintenance or engine service.

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