Suburban 3/4 Ton 4WD V8-305 5.0L (1986)
Fluid Pump: All Technical Service Bulletins
A/T - New Pump to Case Bolt and O-Ring Improves Sealing
Number:
86-96
Section:
7A
Date:
June 1986
Subject:
1982-1986 THM 700-R4 TRANSMISSIONS NEW PUMP TO CASE BOLT AND O-RING ASSEMBLY
MODEL AND YEAR:
ALL MODELS USING THM 700-R4 TRANSMISSION
TO:
ALL CHEVROLET DEALERS
FIGURE 1 - THM 700-R4 TRANSMISSION IDENTIFICATION INFORMATION
All 1986 THM 700-R4 transmissions, beginning April 29, 1986, or Julian Date 119 (Refer Figure 1), are built using a new pump to
case bolt and O-ring assembly. The new bolt and O-ring assembly improves sealing and bolt torque retention.
CASE BOLT AND O-RING
If a leak or low bolt torque retention condition is experienced the new pump to case bolt and O-ring (refer to Figure 2) can be
ordered for service as an assembly, Service Part Number 8654343, or the O-ring can be ordered separately, Service Part Number
8654341.
Refer to the appropriate Service Manual for bolt torque specifications, which are the same for both types of bolts.
