Spicer Single Drive Axles Service Manual: 34DS, 34RS, 38DS, 38RS, DS340, RS340, DS380, RS380, DS400, RS400, DS3 - Manual (Page 18)

Lubrication
15
Wheel Ends without an oil fill hole proceed as follows: (Fig. 2)
1. With axle level and wheel ends assembled, add lubricant through filler hole in axle housing cover until fluid is level with
the bottom of filler hole.
2. Raise the left side of the axle 6 inches or more. Hold axle in this position for one minute.
3. Lower the left side.
4. Raise the right side of the axle 6 inches or more. Hold axle in this position for one minute.
5. Lower the right side.
6. With axle on a level surface, add lubricant through housing cover oil filler hole until fluid is level with the bottom of the
hole.
Note: Axles without wheel end fill holes will require approximately 2.5 additional pints of lubricant to bring the lube level even with
the bottom of fill hole.
Fig. 2 Wheel end lubrication procedure
TEMPERATURE SENSOR
MOUNTING HOLE
WITH AXLE ON LEVEL
SURFACE FILL HOUSING
WITH OIL TO BOTTOM OF PLUG
TILT HOUSING SIDE TO SIDE, 1 MINUTE PER SIDE, THEN,
RECHECK OIL LEVEL IN AXLE
OIL WILL
RUN INTO
WHEEL END
OIL WILL
RUN INTO
WHEEL END