gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

All Other Service Bulletins for Fluid Pump:|86B89 > < A/T - Updated Oil Pump Assemblies|Page 3223
Page 3
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FIGURE 3 - 700-R4 PUMP BODY ASSEMBLY

The new design vane rings (item 212, Figures 2 and 3) will reduce the possibility of vane ring distress and can be used on any 1982 through 1987 THM
700-R4 transmission or any 1981 through 1987 THM 200-4R transmission, and it is recommended that the new iron pump vane rings be used when
replacement of the vane rings becomes necessary.

PARTS INFORMATION:

THM 700-R4 transmission only:

8657531

Pump Vane Ring (2 required)

THM 200-4R transmission only:

8657692

Pump Vane Ring (2 required)

All Other Service Bulletins for Fluid Pump:|86B89 > < A/T - Updated Oil Pump Assemblies|Page 3223