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Made in USA
This GM differential cover is on special because the threads on the fill/level check hole are flawed. The hole will seal if using supplied plug and pipe tape or plumber's tape. There is a fill/level check on the differential housing.
This cover uses 13 bolts. To provide for complete draining of the differential, PML designed the cover with the bottom bolt hole removed so the drain can be at the very bottom. This is not a problem. The PML cover is heavy duty with a machined gasket sealing surface for a leak-free seal.
BOLT SPECIFICATIONS: GM used several different bolts on these differentials. Read this Bolt Options document for more info.
For reference, see our regular GM 9.5 14 Bolt, Patterned Fins, Differential Cover, PML Part Number 9504.
This special should fit and function like a regular part.
This is sold as-is and cannot be returned.
Top down of differential cover.
Inside of differential cover.
The threads in the level hole are flawed. The last picture is the plug for the hole.
