C 2500 Truck 2WD V8-379 6.2L DSL VIN C FI (1985)
SERVICE ACTION:
To service a 1984 (after Julian Date 180) through 1986 THM 700-R4 transmission that exhibits the subject condition, replace the pump body assembly.
The new seal assembly and retainer are included with the pump body assembly or are available separately.
Figure 2 - OIL PUMP BODY ASSEMBLY
SERVICE PARTS INFORMATION: (Figure No. 2)
8649950 Pump Body Assembly (including bushing)
8648394 Seal Assembly
8654491 Seal Retainer
SERVICE MANUAL REFERENCE:
Refer to Section 7A of the appropriate light duty model service manual for Oil Pump Assembly removal procedures.
Figure 3 - BUSHING INSTALLATION