Ford 2L1Z-4033-CA
Differential Cover, Front

The service for differential covers must start with turning off the air suspension system electrical power through the RH kick panel mounted air suspension switch to stop any unwanted air spring inflation or deflation. Remove the differential housing bolts to drain out lubricant from the differential housing while you support the vehicle through a well-cleaned storage container for the later reuse of lubricant. Wash all machined areas on both the differential housing and cover before protecting the rear axle interior from foreign particles. Apply Clear Silicone Rubber F7AZ-19554-CA sealant extending as a single bead to differential housing cover before immediate installation within 15 minutes to prevent new sealant usage. The silicone sealant needs one hour of curing time before filling the axle with lubricating fluid. The process starts with adding 118 ml (4 oz.) of Additive Friction Modifier C8AZ-19B546-A which meets Ford specification EST-M2C118-A to the Traction-Lok axles before proceeding to fill them with 1.8 liters (3.75 pints) of SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL which has Ford specification WSP-M2C197-A. Reactivate the air suspension system before executing the vehicle lowering procedure when your vehicle is equipped with this system.

Start servicing the differential cover by raising and properly supporting the vehicle. The differential housing cover removal becomes possible after uninstalling 10 bolts which enables the draining of lubricant from the rear axle housing. Make sure to wipe down both machined surfaces on the differential housing and the rear axle housing so they are clean of oil then you should apply the new silicone sealant before covering the inside of the rear axle from cleanup contamination. Clear Silicone Rubber F7AZ-19554-CA with equivalent Ford specifications ESB-M4G92-A should be used to make a continuous bead that requires application on the differential housing cover before installation within 15 minutes to prevent additional sealant application. Waiting for an hour until silicone sealant reaches full cure state will be ideal before performing lubricant fill. Place the differential housing cover along with its ten bolts in position before adding SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL or an equivalent brand meeting Ford specification WSP-M2C197-A to the specified level of 3.25 - 3.50 liters (6.9 - 7.4 pints). Complete the procedure by installing the filler plug.

The first step when servicing differential housing cover involves switching off the air suspension switch in the right-hand kick panel which completely halts electrical power to prevent unintended air spring movements. After vehicle elevation with support the lubricant service period begins when you remove the bolts and differential housing cover to drain the lubricant into a clean container. The machined areas on both components need cleaning until they show no traces of oil followed by rear axle interior protection against contamination. Install a continuous bead of Clear Silicone Rubber F7AZ-19554-CA or equivalent to the differential housing cover according to Ford specification ESB-M4G92-A. Do the installation within 15 minutes to prevent using fresh sealant. Run a continuous bead of Clear Silicone Rubber F7AZ-19554-CA or equivalent on the differential housing cover before filling with lubricant. Permits silicone sealant curing time for an hour prior to lubrication. Platform the covered differential housing into place and fasten its bolts. Additive Friction Modifier C8AZ-19B546-A to the rear axle at a rate of 118 ml (4 oz.) while using an equivalent product that meets Ford specification EST-M2C118-A. Then add SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL to the rear axle at 1.8 liters (3.75 pints) before installing the fill plug. When the vehicle contains air suspension you need to reactivate this system before executing a vehicle lower.

The differential housing service requires first switching off the air suspension switch found at the left luggage compartment for preventing airborne air spring changes. The vehicle contains a fire suppression system that needs depowering before service. Position the vehicle at neutral gear and place it on a hoisting system. Start by unboltting the differential housing cover and drain the lubricant from its chamber before taking out the cover. First clean the machined areas of both differential housing and cover until they show no traces of oil because contaminations should remain inside the rear axle during installation. Use a continuous application of silicone gasket and sealer on the differential housing cover followed by immediate installation within a 15-minute timeframe because new sealant might be required. Filling the axle with lubricant should occur after at least one hour of curing silicone sealant when possible. The differential cover should get positioned correctly along with the axle guard installation if used then bolt tightness should reach 45 Nm (33 ft. lbs.) in a star pattern. You should insert 118 ml (4 ounces) of friction modifier into the rear axle through the fill plug after cleaning the tool recess for proper insertion. Locate 2.37 liters (5.0 pints) of lubricant to fill the rear axle after installing the fill plug which needs to be tightened to 30 Nm (22 ft. lbs.). The system must be repowered while the vehicle requires air suspension users to reactivate the system before performing a descent.

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.

The first step of differential housing cover maintenance involves shutting off air suspension electrical power through the left-luggage compartment switch because it prevents unnecessary air spring inflation or deflation during driving. Support the automobile first then stand the differential housing cover off by removing bolts while draining the lubrication from the housing components. Both machined surfaces must be clean from oil contamination before installation while keeping inside the rear axle area sealed to avoid dirt intrusion as you perform cleaning operations. A continuous bead of silicone sealant should be applied to the differential housing cover which must be installed before the 15-minute sealant-drying time ends. The axle needs at least one hour during silicone curing time before adding lubricant. First secure the differential housing cover and thread in its bolts. The procedure for filling Traction-LOK axles requires 118 ml (4 oz) of additive friction modifier which should be added before removing the axle fill plug and ensuring tool recess cleanliness. Reinstall the fill plug after adding 1.8 liters (3.75 pints) of the right lubricant to the rear axle. You must reinitiate vehicle air suspension before carrying out a vehicle descent after installing new suspension air components.

Before servicing or repairing the differential cover workers must turn off electrical power to the air suspension system through the air suspension switch in the RH kick panel area to avoid unexpected air spring inflation or deflation during work. Position the vehicle on supports before you drain lubricant into a reuse container by removing the bolts and the differential housing cover from its position. First wash the machined areas free of oil from the differential housing and cover and then place a protective material inside the rear axle to avoid possible contamination. The differential housing cover requires a continuous Clear Silicone Rubber F7AZ-19554-CA bead which must be installed before 15 minutes have passed since applying the silicone to prevent new sealant usage. Filling the axle with lubricant should wait until the silicone sealant has fully cured during a one-hour period. Position the differential housing cover before inserting its bolts. Additive Friction Modifier C8AZ-19B546-A or an equivalent meeting EST-M2C118-A of Ford specification should be poured into the rear axle to a total of 118 ml (4 oz.) followed by SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL or equivalent WSP-M2C197-A of Ford specification per the 1.8 liters (3.75 pints). Then install the fill plug. Lowering the vehicle should only occur after restoring the air suspension operation in vehicles that utilize this system.

Service and repair of the differential housing cover requires switching off the air suspension system power at its switch found on the LH side of the luggage compartment to avoid air spring inflation or deflation while hoisting or jacking or towing. Support the vehicle with stands before removing the differential housing cover by untightening the bolts and extracting all differential liquid. Both differential housing and cover surfaces must have a thorough cleaning with machine-specific removal of oil followed by inside rear axle coverage to stop dirt from entering. A continuous bead of clear silicone rubber should be applied to the differential housing cover which needs to be installed within 15 minutes to prevent the need for new sealant. Fill the axle with lubricant only after one hour passes since silicone sealant application. In the next step position the differential housing cover before install the bolts. Before you remove the axle fill plug of Traction-Lok units you must add exactly 118 ml (4 ounces) of friction modifier additive to the rear axle space while making sure the tool recess remains free from contamination. The installation process requires 1.8 liters (3.75 pints) of lubricant which should be followed by reinstallation of the fill plug. Lower the vehicle only after activating air suspension when the system is present on the vehicle.

Ensure the electrical power to the air suspension system is turned off by switching off the air suspension switch located on the left-hand side of the luggage compartment.

Apply a continuous bead of Clear Silicone Rubber D6AZ-19562-AA or an equivalent meeting Ford specifications ESB-M4G92-A.

Add 236.5 ml (8 ounces) of additive friction modifier before lowering the vehicle.

The machined surfaces on both the rear axle housing and the differential housing cover must be clean and free of oil.

Fill with approximately 1.66 - 1.77 liters (3.5 - 3.75 pints) of SAE 75W-140 High Performance Rear Axle Lubricant FlTZ-19580-B or an equivalent that meets Ford specification WSL-M2C192-A.

Ensure the vehicle is in NEUTRAL and positioned on a hoist.

Tighten the differential housing cover bolts to 46 Nm (33 lb-ft).

Cover the inside of the rear axle.

Ensure the vehicle is in NEUTRAL and positioned on a hoist.

Install it within 15 minutes to avoid needing to reapply the sealant.

Secure the differential housing cover with the 10 bolts, tightening them to 46 Nm (33 lb-ft).

Apply a continuous bead of clear silicone rubber to the differential housing cover and install it within 15 minutes to avoid needing new sealant.

Install and tighten the filler plug to 30 Nm (22 ft. lbs.).

Fill the rear axle with 118 ml (4 oz) of Additive Friction Modifier C8AZ-19B546-A or an equivalent meeting Ford specification EST-M2C118-A, then fill the rear axle with 1.8 liters (3.75 pints) of SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL or an equivalent meeting Ford specification WSP-M2C197-A, and install the fill plug.

Install the bolts.

Cover the inside of the rear axle to prevent contamination.