Spicer 40K User Manual
Bulletin: ABIB-0704
Date: January 9, 2008
Bulletin Type: Service
Topic: 40K HELICAL THRUST WASHER AND WHEEL DIFFERENTIAL CASE
CHANGES
__________________________________________________________
Affected Models:
DS/RS344, 404, 405, DSP/RSP40, DSP/RSP41, DST40, DST41, DSH40/RSH40, DSH44/RSH44,
17/19/21/22060S, 22060SH
Dana has made design changes to the Helical Gear Thrust Washer and Wheel Differential Cases in the
models listed above. These new design features enhance the overall performance of each segment of the
axle the parts are located in (Power Divider Section and Wheel Differential Section). Each change is
detailed below and was implemented in production units starting in mid 2007.
SERVICE PARTS EFFECT:
The original design parts and new design parts are 100% interchangeable. All kits sold through service
containing the original parts will move to the new design parts as individual inventories are depleted.
Helical Gear Thrust Washer Change:
Change Date: Aug 20th 2007
28702 thrust washer, located in the “Power Divider Section” of forward carriers is now replaced by
The 1
washer part number 132439. The new washer is common in design to the washer featured in our current
46K models. As pictured below it is easily identifiable by the increased surface dimension and the change
in design of the lubrication grooves.
Original Part-no: 128702 New Part-no: 132439
Service Kits:
216220, 217463, 510393,
510399, 510591, 510593,
511190
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INFORMATION BULLETIN ABIB-0704 – 40K Helical Thrust Washer and Wheel Differential Case Changes
Wheel Differential Case Change:
Change date: Aug 20th 2007*
*(change date and actual implementation of this change are not exact for each part as inventories are being depleted)
New wheel differential cases have been released that are designed to enhance the lube flow to the
“Wheel Differential Section”. Referred to as the Coreless design, the new differential cases are designed
with new lube passage openings that increase the flow of axle lubricant in and out of the wheel differential
nest.
Original P/N’s Description New P/N’s Service Kits
129464 Flange Half 133737* 508653 & 508724*
129465 Flange Half 133738 508654 & 508725*
129466 Flange Half 133739 508655 & 508726*
129467 Flange Half 133740* 508656 & 508727*
127498 Plain Half* 132437 508653 thru 508656
*Note: The plain half diff case P/N 128607 for “Diff-Lock” models did not change.
New Design Flange Half Original Design Flange Half
New Design Plain Half Original Design Plain Half
The material contained in this bulletin is product improvement information. Dana Corporation is
committed to, or liable for, canvassing existing products.
not
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