Disassembly
1. Remove the differential assembly from the differential housing. For additional information, refer to Differential Case in this section.
2. Remove the 10 bolts.

3. CAUTION: Do not damage the threads in the bolt holes.
Insert a punch in the bolt holes, and drive off the ring gear.

4. Using the special tools, remove the differential bearings (4221), if necessary.

5. Remove the bolt and the differential pinion shaft (4211).

6. WARNING: Due to the spring tension, use care when removing the differential clutch spring (4214). Failure to follow these instructions may result in personal injury.
Remove the differential clutch spring.

7. Remove the differential gears.
1. Remove the two differential pinion gears (4215).
2. Remove the two differential side gears (4236).
3. Remove the two differential pinion thrust washers (4230).

8. CAUTION: Keep the differential clutch packs (4947) in order. Do not mix them.
Always reassemble them in the same sequence.
Separate the differential clutch packs and shims from the differential side gears and tag them "right" and "left".
- Clean and inspect the remaining differential components for wear and damage and install new parts as necessary.

9. CAUTION: Do not use acids or solvents when cleaning the differential clutch pack.
Wipe components only with a clean, lint-free cloth.
Clean and inspect the differential clutch packs for wear and damage and install new parts as necessary.
Test yourself
A quick Ford Mustang quiz: every answer comes with an explanation and a link to the manual page.