gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

A/T - Leaks From the Oil Pump Body|Page 3200 > < A/T - Leaks From the Oil Pump Body
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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

A/T - Leaks From the Oil Pump Body|Page 3200 > < A/T - Leaks From the Oil Pump Body