- Socket Set
- Flat Head Screwdriver
- Drain Pan
- Gasket Scraper
- Brake Clean (Optional)
Lift your Mustang with either jacks and a jackstand or with a lift.
Place a bucket or drain pan under your rear end, and loosen and remove all but the top cover bolts.
Using a flat head screwdriver, pry the cover open and allow the fluid to drain into the drain pan.
Once the oil has slowed to a drip, loosen and remove the top bolt, remove the cover and set aside.
Scrape off any remaining gasket and clean the differential with brake clean. Do the same with the cover as well.
Install either a lube locker gasket
or quality gasket maker on the mating surfaces.
Reinstall the cover and torque down the bolts to the differential in a star pattern.
Locate and remove the drain plug with the correct drive/socket.
Using a fluid transfer pump or simply squeezing the fluid into a rubber hose inserted into the differential, fill the differential with the correct amount of fluid.
For proper fluid capacities, check out our Mustang Fluid Capacities Charts