LINES GP-AIR 2597947 - Caterpillar

Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Problem
Illustration 1 g06186238
Retaining ring failure
The 9U-8875 Retaining Ring and 274-8638 Retaining Ring are reported to either break out or come out of the groove in the clutch drum. This will result in clutch pressure loss and complete transmission dismantle to repair it.Solution
In the event of failure, replace the 9U-8875 Retaining Ring and 274-8638 Retaining Ring with the new 366-7249 Retaining Ring.The new 366-7249 Retaining Ring is compatible with the counter shaft group part numbers that are listed in Table 1.
Table 1
Part Number Part Name
274-4580 Counter Shaft Group
374-5112 Counter Shaft Group
388-8454 Counter Shaft Group
471-1489 Counter Shaft Group
473-7090 Counter Shaft Group
274-4572 Counter Shaft Group