Safari Wagon V8-305 5.0L (1987)
Technical Service Bulletin # 87714
Date: 870401
A/T - Reverse Engagement Shift Feel Improvement
Number
87-7-14
Date
4/87
REVERSE ENGAGEMENT SHIFT FEEL, NEW
Subject:
SERVICE AND PARTS INFORMATION
1987 SAFARI WAGON AND FIREBIRD MODELS EQUIPPED WITH THM 700-R4 (MD8)
PARTS INVOLVED:
1.
REVERSE INPUT HOUSING AND DRUM ASSEMBLY
2.
LO AND REVERSE CLUTCH ASSEMBLY
3.
FORWARD CLUTCH BACKING PLATE
4.
3-4 CLUTCH APPLY PACKAGE
Changes to the 1987 THM 700-R4 transmission to improve shift feel when REVERSE is selected from any gear range and other new parts in the forward
and 3-4 clutch assemblies.. These parts changes mean you will have to use new service procedures in this bulletin that are not in the 1987 Service
Manual.
Figure 1
DATE OF PRODUCTION CHANGE:
(Figure 1)
Starting February 9, 1987 (Julian Date 040) all 1987 THM 700-R4 production and Service Replacement Transmission Assembly (SRTA) models were
built with new parts in the Reverse, Lo and Reverse, Forward and 3-4 Clutch Assemblies.
Service Information
SERVICE ACTION:
Each "SUBJECT" in this bulletin will help you to identify new parts, show how to overhaul the new clutch assemblies and explain which parts can
service a 1982 through 1986 and 1987 (before Julian Date 040) THM 700-R4 transmission.
SERVICE PARTS INFORMATION:
Each "SUBJECT" will give the new part numbers and descriptions for each of the subject clutches. It may be necessary to VIP order these new parts
from GM Service Parts Operations (GMSPO).
SERVICE MANUAL REFERENCE:
The 1987 Service Manual procedures can be used to remove the clutch assemblies from the transmission. Use the information in this bulletin to bench
overhaul the clutches.
SERVICE NOTES:
IMPORTANT:
Also use the information in Bulletin 87-7-12, dated 2/87 when assembling any 1987 THM 700-R4 transmission.
