Spicer Tandem Drive Axles Service Manual D__R440, 460, 480, D_R461, 462, 463, 521, 581, 601, 651, 652, 653 - Manual (Page 113)

109
Wheel Differential Lock
Wheel Differential Lock
Wheel Differential Lock
Comparison Information on Dana Wheel
Differential Locking Axles
This section covers Dana wheel differential locking axles. The
basic concept of Dana Wheel Differential Locking axles are the
same, but the designs vary model to model. When servicing
your differential lock axle, pay close attention to all NOTES,
TIPS and WARNING signs that will assist you while you work
on your axle. The differential lock axles listed below are
grouped together by design type.
Note: Information for Type 1 and 2 differential lock axles are
not covered in this manual, refer to AXSM-0048 and
AXSM-0046 for information pertaining to those axles.
Parts unique to type 3 differential lock axles.
Type 1 Style Differential Lock Axles Feature:
• A sliding curvic clutch
• A fixed curvic clutch
• The flange half differential case is externally splined
• Uses double spline or extended spline axle shaft (11"
spline length) on flange half side of axle
• Uses standard spline axle shaft (4" spline length) on
plain half side of axle
• The differential lock selector switch is located on the
carrier/cap assembly
Type 2 Style Differential Lock Axles Feature:
• A sliding curvic clutch
• A fixed curvic clutch
• The plain half differential case is externally splined
• Uses extended spline axle shaft (11" spline length) on
plain half side of axle
• Uses extended spline axle shaft (11" spline length) on
plain half side of axle
• Uses standard spline axle shaft (4" spline length) on
flange half side of axle
• The differential lock selector switch is located on the
differential lock shift cylinder
Type 3 Style Differential Lock Axles Feature:
• A two-speed carrier/cap assembly
• A splined clutch splined internally
• The differential lock is shifted by air shift units
• The differential lock selector switch is located on the
air shift unit
• The flange half of the case is splined internally
• Uses extended spline axle shaft (11" spline length) on
flange half side of axle
• Uses standard spline axle shaft (4" spline length) on
plain half side of axle
Type 1* Type 2* Type 3
19055D 21080D 19060D DD/RD461
21065D 23080D 21060D DD/RD521
22065D 26080D 22060D DD/RD581
23070D 23105D DD/RD404
23085D 26105D DD/RD454
26085D 30105D
* See AXSM-0048 and AXSM-0046 Service Manual for tech-
nical information