chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

All Technical Service Bulletins for Extension Housing: > < A/T Case Extension - Leaks
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DATE OF PRODUCTION: (Figure 1) 
Starting January 14, 1993 (Julian Date 014) all 1993 HYDRA-MATIC 4L80-E/4L80-EHD models will have the corrected case extension assembly.

SERVICE INFORMATION:

PART NO.

DESCRIPTION

8677464

Extension Assembly-Case (19)

8681168

Helixseal Assembly-Case Extension (20)

Parts are currently available at GMSPO.

All Technical Service Bulletins for Extension Housing: > < A/T Case Extension - Leaks