Other Name: Cover; Differential Cover, Front; Axle Cover; Rear Cover
Position: Front
Replaces: 7L1Z-4033-B
Fits the following Lincoln Models:
Mark LT | 2007-2008 | Base | 8 Cyl 5.4 L GAS
Navigator | 2007-2024 | Base, Black Label, L, L Base, L Black Label, L Livery, L Luxury, L Reserve, L Select, L Ultimate, Luxury, Premiere, Reserve, Select, Ultimate | 6 Cyl 3.5 L GAS, 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS
Navigator | 2002-2017 | Base, L, L Luxury, L Reserve, L Select, L Ultimate, Luxury, Reserve, Select, Ultimate | 6 Cyl 3.5 L GAS, 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS
Aviator | 2020-2023 | Base, Black Label, Black Label Grand Touring, Grand Touring, Livery, Reserve | 6 Cyl 3.0 L GAS, 6 Cyl 3.0 L PLUG-IN HYBRID EV-GAS (PHEV)
Q: How to service the Differential Cover on Lincoln MKX?
A: The first step to service the differential housing cover requires positioning the vehicle in NEUTRAL position on a hoist. You must drain the differential fluid from the housing by removing its 10 securing bolts. When installing new silicone sealant on the differential housing cover always check that the machined surfaces of the rear axle housing and differential housing cover do not have oil residue and keep the inside of the rear axle protected from damage. Check that the vent on the rear cover is without obstructions while cleaning the gasket-using areas on both differential housing cover and housing. The differential housing cover needs installation within a 15-minute period of silicone sealant application yet failure to do so requires sealant replacement. A period of one hour should separate silicone application from filling with lubricant to enable silicone curing to reach completion. After applying a steady line of clear silicone rubber you should install the differential housing cover with its 10 bolts while tightening them to 23 Nm (17 lb-ft). The rear axle needs to receive its prescribed 1.15L (2.43 pt) of rear axle lubricant through its filler hole while maintaining a 3-5 mm (0.118-0.196 inch) distance below the bottom of the hole before reattaching the plug with correct torque force of 29 Nm (21 lb-ft).
Q: How to Properly Service a Differential Cover and What Steps Are Involved for a Lincoln Town Car?
A: Service operations on the differential cover should begin with disabling electrical power for air suspension through the RH kick panel air suspension switch to avoid random air spring inflation or deflation. The vehicle needs support at a height for differential lubricant drainage through removal of its cover along with bolts. The drained lubricant can be used again after collection in a clean container. The first step is cleaning machine surfaces from the differential housing and the cover until they remain oil-free and placing protective material inside the rear axle to stop moisture and dirt entry. Use Clear Silicone Rubber D6AZ-19562-AA as per Ford specification ESB-M4G92-A with an unbroken strand to seal the differential housing cover. The silicone needs immediate installation after application otherwise new sealant may be required. The process to fill the axle with lubricant should be delayed until the silicone sealant completes its one hour curing period. Combine the differential housing cover with bolts for installation. Additive Friction Modifier C8AZ-19B546-A following Ford specification EST-M2C118-A to a Traction-Lok axle in an amount of 118 ml (4 ounces). Continue with the lubrication by filling the axle with SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL which meets WSP-M2C197-A Ford specification or equivalent. Then install the fill plug. The vehicle needs air suspension reactivation before its lowering operation if it has this feature.
Q: How to service the differential cover on a 9.75-inch ring gear on Lincoln Navigator?
A: You should begin differential service of a Ford 9.75-inch ring gear by turning off the air suspension switch in the right-hand kick panel to prevent air spring pressure changes while performing the tasks. Lift the vehicle and move the rear stabilizer bar together with the rear axle tracking bar to a safe location. The lubricant can be collected in a reusable container after removing 12 differential housing cover bolts and disconnecting the differential housing cover. Both the rear axle housing and differential housing cover require cleaning with oil removal before application to eliminate contaminants inside the rear axle. A continuous bead of Sealant D6AZ-19562-AA Clear Silicone Rubber or its equivalent which satisfies Ford specification ESB-M4G92-A must be applied to the differential housing cover. Apply the cover to the differential housing within a 15-minute timeframe after silicone placement because late installation requires fresh application of sealant. Sealant should completely cure through a waiting period of one hour before performing lubricant addition to the unit. The customer should tighten the bolt before filling the rear axle with specified lubricant and then add the filler plug. The procedure for Traction-Lok axles requires a prior addition of 118 ml (4 ounces) Ford Additive Friction Modifier C8AZ-19B546-A or equivalent to Ford specification EST-M2C1 18-A before filling the rear axle with lubricant. Finally, lower the vehicle.