Rear Differential Center Case Front Oil Seal Replacement
Rear Differential Center Case Front Oil Seal Replacement
Special Tools Required
- Flange Holder 07XAB-0010101
- Oil Seal Driver E 070AD-RJC0150
- Driver Handle, 40 mm I.D. 07746-0030100
- Bearing Puller, commercially available
- Seal Remover Snap-on YA105, commercially available
1. Remove the rear differential Rear Differential Removal.
2. Pry up the stake on the locknut (A) from the groove of the input shaft, making sure that the tab completely clears the groove to prevent damaging the input shaft.
3. Install the companion flange holder on the companion flange.
4. Loosen the locknut (A) counterclockwise so that its tab (B) comes out from the groove (C) in the input shaft.
5. Tighten the locknut (A) until its tab (B) aligns with the groove (C).
6. Remove any dirt from inside of the groove in the input shaft, then loosen the locknut.
7. Remove the 22 mm locknut (A), the 22 mm spring washer (B), the 23 mm back-up ring (C), and the 23 mm O-ring (D).
8. Make marks (A) across the companion flange (B) and the input shaft (C).
9. Remove the companion flange using a commercially available puller (D).
10. Remove the three 8 x 50 mm flange bolts and the six 8 x 35 mm flange bolts in a crisscross pattern in several steps, then remove the front case (A), the 8 x 14 mm dowel pins (B), and the 8 x 130 mm pipe (C).
11. Remove the high clutch (A).
12. Secure the input shaft (A), low clutch (B), and planetary carrier (C) together as an assembly with a piece of wire, then remove the assembly.
NOTE: Do not remove the input shaft from the low clutch and planetary carrier, because aligning the input shaft splines with the other components may be difficult.
13. Remove the oil pump assembly (A), then remove the two 8 x 51.5 mm pipes (B), and the two 8 x 35 mm pipes (C).
14. Remove the 45 x 67 x 6.5 mm oil seal (A) using a commercially available seal remover.
NOTE: Remove the oil seal with care so you do not damage the inside surface of the center case front oil seal surface.
15. Remove the 45 x 65 x 6.5 mm oil seal (A) using a commercially available seal remover.
NOTE: Remove the oil seal with care so you do not damage the inside surface of the center case front oil seal surface.
16. Install a new 45 x 65 x 6.5 mm oil seal (A) using the oil seal driver E and the 40 mm driver handle.
17. Install a new 45 x 67 x 6.5 mm oil seal (A) using the oil seal driver E and the 40 mm driver handle.
18. Install the two 8 x 51.5 mm pipes (A), the two 8 x 35 mm pipes (B), and the oil pump assembly (C).
19. Install the planetary carrier (A), low clutch (B) and input shaft (C) as an assembly, then remove the wire.
20. Install the high clutch (A).
21. Remove the dirt and oil from the sealing surface. Apply liquid gasket (P/N 08717-0004, 08718-0001, 08718-0003, 08718-0004, or 08718-0009) to the sealing surface. Make sure you seal up to the inside edge of the bolt holes to prevent oil leakage.
NOTE:
- You must assemble the housings within 5 minutes after applying the liquid gasket. If you applied liquid gasket P/N 08718-0012, the component must be installed within 4 minutes. If not, the sealing surface must be cleaned, and the liquid gasket reapplied.
- Allow liquid gasket to cure at least 30 minutes after assembly before filling the differential with fluid.
22. Install the two 8 x 14 mm dowel pins (A) and the 8 x 130 mm pipe (B).
23. Align the hole (C) of the front case (D) with the 8 x 130 mm pipe. Align the groove (E) of the front case with the high clutch tabs (F), then install the front case onto the center case.
24. Tighten the flange bolts in a crisscross pattern in several steps, then tighten the bolts to the specified torque.
25. Set the companion flange (A) onto the front case (B) by aligning the reference marks (C), then install the 36 mm socket (D), the 8 mm flange bolt (E), and the 8 mm nut (F) as shown.
26. Tighten the 8 mm nut, then install the companion flange.
27. Install a new 23 mm O-ring (A), the 23 mm back-up ring (B), the 22 mm spring washer (C), and a new 22 mm locknut (D).
NOTE: Apply ATF to the 23 mm O-ring.
28. Install the companion flange holder to the companion flange, then tighten the 22 mm locknut to the specified torque.
29. Stake the locknut tab (A) into the groove in the input shaft.
30. Install the rear differential Rear Differential Installation.