Material Change Number (MCN)
Unit Identification Code (UIC) @ Battalion Level
NSN of End Item
USA Registration Number
Date of Application
Hours required for Application
For off-line reporting, the 3.5-inch disk shall be mailed to the following address:
Warren, MI 48397-5000
After Rear Differential Cooler Modification Kit is installed, mark MWO number "9-2320-387-
20-1" in the MWO applied block and date applied in Date Block on 10930014 MWO Instruction
Do not remove any existing MWO instruction plates from the
Perform steps 2 and 3 for M1113 and step 4 for M1114.
Install MWO instruction plate 10930014 by drilling a 0.104-in. diameter hole (#37 drill bit)
within designated area on left side body reinforcement panel and secure with MS21318-20
After drive screw is installed, flatten or remove protruding excess drive screw material from
inside of side body reinforcement panel.
Apply adhesive, type II, class I on back of MWO instruction plate (10930014) and install on
15. MATERIAL CHANGE (MC) NUMBER.
This MWO is authorized by (MC) number 1-01-06-0008.
16. MODIFICATION IDENTIFICATION.
When installed correctly, the rear differential cooler installation will appear as shown in figure 27.
b. After the Rear Differential Cooler Modification Kit is installed, the differential should be tested for
proper operation. Any faults detected or discrepancies noted will be corrected before the vehicle is returned
to normal service.