M/T - Countershaft Gear Locknut Modification

88chrysler09

Models


1984-87 "YDC" (Conquest) 1985-86 "SP" (Ram 50) 1987-88 "PB" (Ram 50) 1987-88 "SJ" (Raider)


Subject

Countershaft Gear Locknut Change To Prevent Loosening


Index

TRANSMISSION


Date

July 5, 1988


No.

21-07-88

P-2666 (C21-05)

FIGURE 1:

The countershaft gear locknut used on the KM132 and KM145 series transaxles has been changed. The new nut can easily be identified by using the dimensions, indicated in Figure 1.

FIGURE 2:

Because of the countershaft gear locknut change, the countershaft gear on the KM132 and KM145 also had to be changed. The thread length was increased, as indicated in Figure 2.

FIGURE 3:

With these two changes, a change was also made in the transfer case adapter on the KM145 to provide additional room for the new countershaft gear and locknut, see Figure 3.

These changes were effective in September, 1987, with transaxle number DM9593. These components are interchangeable with previously built units. However, a new locknut and a new countershaft gear must both be replaced on a KM132, and a new locknut, new countershaft gear, and a new transfer case adapter must all be replaced when working on a KM145.

PARTS REQUIRED

1 Countershaft Gear Locknut PN MD727465 - KM132-B, I, G
-KM145-2, 8, 9

1 Countershaft Gear PN MD728212 - KM145-2
PN MD728213 - KM132-B
PN MD728214 - KM132-G
PN MD728215 - KM132-I
- KM145-8, 9

1 Transfer Case Adapter PN MD729949 - KM145-2, 8, 9

REPAIR PROCEDURE

Use appropriate service manual to install components.


POLICY: Information Only