Spicer
Axles & Brakes
ABIB-0305
Information Bulletin
Bulletin Type: Service/Parts
Topic: Kingpin Bushings – Pre-Size vs. Reamable
Affected Models: E-1000I/W, E-1200I/W, E-1201W, E-1203I, E-1320I/W,
E-1460I/W, E-1462I, EFA-12F4, EFA-13F5
Dana Commercial Vehicle Systems Division has
released new steer axle kingpin service kits that
include new “PRE-SIZED” kingpin bushings. Using
these new service kits with pre-sized bushings
eliminates the need to dimensionally ream knuckle
bushings at installation.
Pre-sized bushings are different in one important way
from bushings that require reaming after installation.
Pre-sized bushings reply on the bushing tolerances
for the wall thickness and diameter to provide proper
kingpin installation and operating clearance.
Bushings that are reamed after installation reply only
on the additional reaming step to provide for kingpin
clearance. Final kingpin clearances will be slightly
greater with pre-sized bushings due to the bushing
tolerances.
No More Reaming or
Expensive Tooling
Dana’s 1320HD101
Pre-sized Bushing
®
Important: The larger maximum tolerance on the pre-sized bushings signify the possibility of a
looser fit at the time of assembly, this is acceptable.
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Below you will find the new allowable endplay measurement for pre-sized bushings. You will also find a
listing of benefits and differences between pre-sized and reamable bushings.
The endplay measurements taken after
•
assembly should not exceed .008” at the
“Top” or “Bottom” of the knuckle.
It is important to locate the dial indicator
•
at the correct locations on the knuckle
when taking endplay measurements.
Benefits of Pre-sized Bushings vs. Reamable Bushings
Longer bushing life by eliminating damage during reaming process
•
•
Shorter repair times means less down time on the vehicle
•
Eliminate expensive reaming tools
Differences Between Pre-sized Bushings vs. Reamable Bushings
•
Larger tolerances between kingpin and bushings
Pre-sized = .0057” Reamable = .0025”
Allowable endplay measurements for pre-sized bushings vs. reamable bushings
•
Pre-sized - .000” to .008” Reamable - .000” to .004”
Top of Knuckle Indicator
Location
Bottom of Knuckle Indicator
Location
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SERVICE NOTES:
Bushing Replacement Criteria Has Not Changed.
•
of the bushings and possible replacement. Complete steer axle specifications can be found on-line in Dana
service manual AXSM-0038
Regular Grease Interval’s are Very Important to Adhere to. The required vehicle maintenance
•
schedules set by the OEM’s and Fleets are important for greasing kingpin joints and tie rod ends. The
reason for greasing is to push out the contamination that exists in the kingpin joint and/or tie rod ends.
Some OEMs and Fleets have specific guidelines for certain type vehicles or applications, where available
those guidelines should be adhered to in place of the general guidelines.
Grease the Steer Axle Bushings With The Vehicle Jacked Up. If it is difficult to grease either the
•
upper or lower bushing, try greasing the bushing with the vehicle jacked up and supported on axle stands.
This will help improve grease flow and help flush out contamination.
Endplays in excess of .015” require inspection
.
PRE-SIZED KINGPIN BUSHING CHART
PRE-SIZED
BUSHING P/N
1008924
1320HD101
806334 Garlock EFA18F3, EFA20F4, EFA-22T2, T5, EFA-24T2, T5, E-1460I/W , E-1462I
1320HD100
1460HD100 Bronze EFA18F3, EFA20F4, EFA-22T2, T5, EFA-24T2, T5, E-1460I/W, E-1462I
101HD101
120HD102
140HD100-2
160HD102
TYPE
Garlock
Garlock
Bronze
Garlock
Garlock
Garlock
Garlock
MODELS
EFA12F3, EFA13F3, EFA12F4, EFA13F5
E-1000I/W, E-1200I/W, E-1201W, E-1203I, E-1320I/W
E-1000I/W, E-1200I/W, E-1201W, E-1203I, E-1320I/W
I-60, I-80
I-100SA, I-100S, I-100SG, I-120S, I-120SG,
I-120SA, I-140SA, I-146SA
I-100S/SG, I-120S/SG, I-140S/SG, I-140W, I-160S/W, I-200S/W, I-220W
For spec’ing or service assistance, call 1-800-621-8084 24 hours a day, 7 days a week.
Or visit our web site at:
http://www.spicerparts.com
ABIB-0305 Copyright Dana Corporation, 2003 Commercial Vehicle Axle Division
April 2003 All Rights Reserved. P.O. Box 321
Printed in U.S.A. www.dana.com
Dana Corporation
Toledo, Ohio 43697-0321
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