NHTSA ID Number: 10130945
Manufacturer Communication Number: IK0300061
TSB/Document Date: 2018-04-02
Summary
8,000 LBS Front Suspension Lean Correction
IK0300061 - 8,000 LBS Front Suspension Lean Correction
Page 1 of 2
Countries:
CANADA, UNITED STATES
Document ID: IK0300061
Availability:
ISIS, Bus ISIS, FleetISIS
Revision:
Major System:
SPRINGS AND SUSPENSION Created:
0
8/27/2014
Current Language: English
Last Modified: 10/7/2014
Other Languages: NONE
Author:
Viewed:
Matthew Boyer
147
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Title : 8,000 LBS Front Suspension Lean Correction
Applies To : TerraStar, DuraStar and AE Bus
8/21/2014 - Initial Article Release
Description
Certain TerraStar, DuraStar, and AE Bus models built with a 8,000 LBS front suspension, may experience a chassis lean
causing the left front(driver side front) of the vehicle to be lower than the right front(passenger side front). This is caused by
a stack up of different component locations on the truck, which cause a weight bias to one side. When this condition is present
on a truck equipped with IROS rear air ride suspension, the right rear can be higher than the left rear.
• Replacing a leaf spring for a TerraStar, DuraStar, or AE bus will not correct a lean condition where the left front is lower
than the right front.
Inspection
1. Park the truck on flat, level ground
2. Using a tape measure, measure the front of the truck from the frame rail to the ground
3. If the left front is lower than the right front by a measurement that is greater than 3/8", then a spacer needs to be installed
Spacer Installation
1. Block the wheels of the truck with wheel chocks
2. Jack up the front of the truck, and support the chassis with jack stands placed under the frame rails
3. Using a floor jack, support the front axle to keep it from falling once the U-Bolts have been removed
4. Remove the UBolts
5. Lower the jack to create enough space between the spring and the axle to insert the spacer
6. Insert the spacer with the tab pointed down. Ensure that the lower tab fits into the hole in the axle, and the center pin tab of
the spring fits into the spacer. Raise the floor jack to take up all space between the spacer, the axle, and the spring
7. Install the new U-Bolts. In a diagonal pattern, torque the U-Bolts in 50 FT-LBS increments
8. Torque UBolts to a final torque value of 260 FTLBS to 300 FTLBS(192 N·M to 222 N·M)
Parts Information
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlI...
11/3/2014
IK0300061 - 8,000 LBS Front Suspension Lean Correction
Page 2 of 2
Spacer 2512808C1
Part Number
Description
Quantity Needed
2512808C1
Spacer- 3" wide by 1/2" Thick
1
3668117C1
New U-Bolts- One inch longer
2
416743C1
Nuts for U-Bolts
4
Labor Information
Operation
Description
Hours
Group
Noun
A03200
Install Front Spring Spacer
0.7
03000
523
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Copyright © 2014 Navistar
, Inc.
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlI...
11/3/2014
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TSB/Document ID: IK0300061
Replacement Service Bulletin Number:
MFR Communication Date: 2014-10-07
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SUSPENSION
MFR Component System:
MFR Component Subsystem:
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