A/T - New Control Valve Assembly Identification
85-717A(V IIc)
APR., 1985
Subject: ADDITIONAL INFORMATION ON THE NEW DESIGN
CONTROL VALVE ASSEMBLY REFERENCED IN CHEVROLET DEALER SERVICE BULLETIN 84-107
Model and Year: ALL 1982 THRU 1985 THM 700-R4 TRANSMISSIONS
TO: ALL CHEVROLET DEALERS
Some recent comments indicate that some confusion still exists on how to identify the new design Control Valve Assembly as referenced in Chevrolet Dealer Service Bulletin 84-107 dated April, 1984.
The Control Valve Assemblies can be identified as follows:
1. The new design Control Valve Assembly used in production starting on January 15, 1984, (Julian date 015) is identified by one of two ways:
Figure 1 - New Design Control Valve Body Assembly:
a. Casting number 2264 with a letter "X". (See Figure 1)
Figure 2 - New Design Control Valve Body Assembly:
b. Casting number 4256. (See Figure 2)
2. The past design Control Valve Assembly (or build dates prior to Julian Date 015) is identified by the casting number 2264 without an "X".
NOTICE: ALL CONTROL VALVE ASSEMBLIES ORDERED FROM THE WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS (WDDGM) WILL BE IDENTIFIED AS INDICATED IN ITEM 1 ABOVE.