Spicer Drive Axles Application Guidelines - Manual (Page 86)

AXAG-0200 June 2009 86
Planetary Double Reduction Axles
Description and Operation
The planetary double reduction axles share their basic
design concepts and many components with the dual
range tandem . The principle variation is the permanent
engagement of the double reduction feature. A
stationary sun gear, fixed in engagement with the low-
speed clutch plate, replaces the sliding clutch gear and
provides continuous double reduction operation in the
same manner as the dual range axle when in Low
Range.