G 20 Van V8-379 6.2L DSL VIN C FI (1992)
Band: All Technical Service Bulletins
A/T - No Reverse, New Rear Band 4L80E
Number:
92-229-7A
Section:
7A
Date:
JUNE 1992
Corporate Bulletin No.: 277125R
ASE No.: A2
Subject:
NO REVERSE
Model and Year:
1991-92 C/K, R/V, G, P TRUCKS WITH 4L80E/4L80EHD AUTOMATIC TRANSMISSION
TRANSMISSION APPLICATIONS:
1991-92 HYDRA-MATIC 4L80-E/4L80-EHD (MT1)
TRANSMISSION MODELS:
All Models
SUBJECT:
Anchor Lug Fatigue (New Rear Band Assembly)
VEHICLE APPLICATIONS:
C, K, R, V and P Trucks G-Van
CONDITION:
Some HYDRA-MATIC 4L80-E/4L80-EHD Transmissions may experience a no reverse condition.
CAUSE:
This is caused by the lugs on the rear band assembly not holding to the case pins, causing the reaction drum not to hold.
CORRECTION:
A new Rear Band Assembly was released to eliminate anchor lug fatigue.
DATE OF PRODUCTION:
