A/T - Shift Solenoid Update
File In Section: 7 TransmissionBulletin No.: 37-71-48A
Date: November, 1996
INFORMATION
Subject:
Transmission Product Updates
(New Shift Solenoids)
Models:
1991-97 Chevrolet and GMC C/K, P, G Models
1991 Chevrolet and GMC R/V Models with HYDRA-MATIC 4L8O-E Transmission (RPO MT1)
This bulletin is being revised to update the part numbers and to include 1995-97 model years. Please discard Corporate Bulletin Number 377148 (Section 7 - Transmission).
Service Information
Starting August 14, 1996 (Julian date 226) all HYDRA-MATIC 4L80-E transmissions are being built with the new solenoid assemblies. The new solenoids are serviced for all 1991 through 1997 4L80-E applications.
Parts Information
Previous Part New Part Description
10478125 10478132 Valve assembly, 1-2 Shift Solenoid (Black)
10478126 10478133 Valve assembly, 2-3 Shift Solenoid (White)
Parts are currently available from GMSPO.