Lumina APV V6-191 3.1L (1990)
Wheel Hub: All Technical Service Bulletins
Rear Wheel Hub/Bearing Assembly - Attaching Bolt Torque
Number: 93-124A-3E
Section: 3E
Date: JULY 1993
Corporate Bulletin No.: 333401R
ASE No.: A4
Subject:
REAR WHEEL HUB AND BEARING ASSEMBLY
ATTACHING BOLT
Model and Year:
1990-93 LUMINA APV
SERVICE UPDATE
THIS BULLETIN CANCELS AND SUPERSEDES DEALER SERVICE BULLETIN NO. 93-124-3E, DATED MARCH 1993. THE TORQUE
SPECIFICATIONS FOR THE REAR WHEEL HUB AND BEARING ASSEMBLY ATTACHING BOLTS FOUND IN SECTION 3D OF THE
1990-93 LUMINA APV SERVICE MANUAL. THE BOLTS ATTACH THE REAR HUB AND BEARING ASSEMBLY TO THE REAR AXLE
(FOUR ON EACH SIDE). ALL COPIES OF 93-124-3E SHOULD BE DISCARDED.
Rear hub and wheel bearing assembly attaching bolts for all Lumina APV, vehicles should be torqued using the following guidelines:
^
Vehicles manufactured from model year 1990 through 1992 require a torque specification of 63 N.m (46 lb.ft.).
^
Vehicles manufactured in model year 1993 and beyond require a torque specification of 82 N.m (61 lb.ft.).
This change is a result of the required torque distinction between unpainted and painted bearing surfaces and not the type of bolt being used.
The 1990-93 Lumina APV Service Manual for Section 3D should be updated.
