21-5. DIFFERENTIAL REPLACEMENT
INITIAL SETUP:
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Maintenance and repair shop equipment:
automotive (Appendix B, Item 2)
Materials/Parts
Two locknuts (Appendix G, Item 174)
Two locknuts (Appendix G, Item 161)
Two washer seals (Appendix G, Item 422)
Sealing compound (Appendix C, Item 63)
Personnel Required
One mechanic
One assistant
Manual References
TM 9-2320-387-24P
Equipment Condition
Service brake rotors removed (para. 7-12).
General Safety Instructions
Differential must be supported during removal and
installation.
Maintenance Level
Direct support
This task covers:
a. Removal
b. Installation
a. Removal
TM 9-2320-387-24-2
21-6
Change 1
1.
Remove drainplug (21) from differential (1). Allow oil to drain and install drainplug (21).
2.
Remove four capscrews (7), two straps (6), and propeller shaft (8) from pinion flange (2).
NOTE
Rear differential is not equipped with washers as indicated in step 3.
3.
Remove two capscrews (5) and washers (4) from differential (1) and mounting bracket (3).
4.
Remove two locknuts (12), washers (9), capscrews (10), washers (9), and mounting bracket (3) from
frame crossmember (11). Discard locknuts (12).
5.
Remove two locknuts (16), washer seals (17), and output flanges (18) from differential (1). Discard
locknuts (16) and washer seals (17).
6.
Support differential (1).
7.
Remove four capscrews (15) and washers (14) from differential (1) and side mounting brackets (13).
8.
Lower differential (1) slightly and disconnect vent line (22).
9.
Remove differential (1).
10.
Remove four capscrews (19) and two brake caliper adapters (20) from differential (1).
WARNING
Differential must be supported during removal and installation.
Failure to do this may cause injury to personnel or damage to
equipment.
NOTE
• Have drainage container ready to catch oil.
• The replacement procedure for front and rear differential is
basically the same except where noted.
