Spicer Diff Lock Selector Switch Standardization - Manual

Spicer
®
Components Bulletin
ABIB-9609
Diff Lock Selector Switch Standardization
This bulletin contains product improvement information.
Dana Corporation is not commited or liable for canvassing existing product.
Effective July 1, 1996, Spicer has standardized the Diff Lock Selector Switch and Wiring Harnesses used on the
axles listed below, with those used on the DD/RD461 product line. The current selector switch (210280) has
12mm threads and the 461 axle series selector switch (129035) has 14mm threads. The wiring harness (pigtail)
connectors at the switch end are not interchangeable between the current (210280) switch and the new
(129035) switch. The old wiring harness must be replaced with a new harness that is compatible to the 129035
switch as part of the switch upgrade. Service parts requirements involving the two groups of axles will vary due
to design features and switch locations.
GROUP A AXLES
The selector switch is located on a new piston cover that now has a 14mm threaded hole to accommodate the
129035 switch. The original piston covers will be replaced by PISTON COVER UPGRADE KITS and the 129035
selector switch is now included with any Carrier Exchange Unit built after July 1, 1996 (date code H96183).
When ordering a piston cover upgrade kit, it is important to select a kit with proper wiring harness.
GROUP B AXLES
The selector switch hole is machined into the carrier and cap assembly. When converting these axles over to the
14mm selector switch, a SELECTOR SWITCH UPGRADE KIT is available that includes a 129035 switch,
compatible wiring harness and adapter components. The adapter components as shown on page 3 of this
bulletin will enable the 14mm switch to be used in the carrier/cap housings that have the 12mm threaded hole.
As stated above, due to selector switch design, the wiring harness will also need replacing. The 129035 selector
switch is now included with any Carrier Exchange Unit or Carrier/Cap service kits produced after July 1, 1996
(date code H96183).
NOTE: Because the wiring harnesses are NOT interchangeable, Spicer suggests stocking all three (3) of
the new wiring harnesses to minimize customer down-time. A wiring harness listing by OEM usage is
provided as a guideline.
When stock of the existing 12mm switches and compatible wiring harnesses for these axles are depleted and no
longer available, the axles will need to be upgraded as described above.
GROUP A GROUP B
19060D
21060D
22060D
DD/RD404
DD/RD454
DD/RD405
19055D 21080D 26105D
21065D 22080D 30105D
22065D 23080D
23070D 26080D
23085D 30080D
26085D 21080D
09/96