1. Gather Tools and Replacement Parts:
- Collect all the necessary tools, including wrenches, sockets, impact wrenches, safety glasses, and a floor jack.
- Obtain the replacement rear end assembly specific to your Mustang model and year.
2. Prepare the Vehicle:
- Park the Mustang on a level surface and apply the parking brake.
- Engage the transmission in "Park" (for an automatic) or "First" gear (for a manual) to secure the vehicle.
3. Remove the Wheels:
- Use a lug wrench or impact wrench to loosen and remove the lug nuts that hold the rear wheels in place.
- Pry the wheel cover off the axle hub, if equipped, and slide the wheel off the hub.
4. Disconnect the Driveshaft:
- Locate the driveshaft connecting the transmission to the differential in the rear end.
- Unbolt the driveshaft from both the transmission and the rear end using appropriate wrenches or sockets.
5. Disconnect Other Components:
- Remove any brackets or components attached to the rear end, such as exhaust mounts, sway bar links, or parking brake cables.
6. Remove the Differential Cover:
- Remove the cover bolts and carefully remove the differential cover from the rear end housing.
- Inspect the differential gears and bearings for signs of wear or damage.
7. Remove the Old Rear End Assembly:
- With the differential cover off, further disassembly and removal of the old rear end assembly will be required. This involves removing retaining bolts and disconnecting other components.
- The rear end is usually heavy, so it's best to use a transmission jack or support for safe removal.
8. Install the New Rear End Assembly:
- After removing the old assembly, install the new rear end by following the steps in reverse, and secure all the retaining bolts and components.
9. Reconnect Components:
- Reattach the disassembled components, such as driveshaft, exhaust mounts, sway bar links, and parking brake cables.
10. Reinstall the Wheels:
- Slide the wheels back onto the axle hubs and reinstall the lug nuts by hand.
- Tighten the lug nuts in a star pattern with an impact wrench or lug wrench until they are snug.
11. Perform a Test Drive:
- Once everything is in place, take the Mustang for a test drive to ensure that the new rear end is functioning correctly.
Remember that replacing a rear end requires a certain level of mechanical knowledge and experience, so it's crucial to carefully read the Mustang's repair manual before attempting the task. If you feel unsure or encounter difficulties, it's best to consult a professional mechanic to assist with the replacement process.
