S10/T10 P/U 2WD L4-121 2.0L VIN Y 2-bbl (1983)
Band Apply Servo: All Technical Service Bulletins
A/T - Low and Reverse Piston Installation/Removal
Number:
84-9
Section:
7A (VIIc)
Date:
Oct., 1983
Subject:
LOW AND REVERSE PISTON - INSTALLATION OR REMOVAL
Model and Year:
ALL THM 700-R4
TO:
ALL CHEVROLET DEALERS
On THM 700-R4 transmissions, the parking pawl must be removed prior to removing or installing the low and reverse piston. This procedure is
necessary because the parking pawl may interfere with the low and reverse piston.
If the low and reverse piston is installed or removed prior to removing the parking pawl, the piston outer seal may be damaged. This will result in a
condition of slipping reverse or no reverse.
To remove the parking pawl, follow the service manual procedure. Do not grind the parking pawl or transmission case in an attempt to remove the
interference point.