Spicer Drive Axles Service Manual Axle Shift Systems, 2-Speed Single Rear Axles - Manual (Page 9)

6
Electric Shift System
General Information
Checking Shift Fork Position and Alignment
Electric shift unit failure or shifting problems may be caused
by the shift fork binding on the slider block. Check the shift
fork position and alignment with the Shift Fork Fit-Up card.
Refer to the instructions on the card and the illustration below
to check the shift fork.
If interference at points A and B exists, carefully grind shift
fork until it matches the fit-up card.
Shift Fork Fit-up Card
Shift Fork
Range Position
Hi
Lo
FORWARD-REAR AXLE
Figure 1
Lo
Hi
Shift Fork
Range Position
REAR-REAR AND SINGLE AXLES
Shift Fork
Fit-up Card
Shift Fork Fit-up Card
(Part No. 128039)
• Fit-up Card must set flush
on mounting surface of axle
• Shift fork must NOT touch
Fit-up Card at points A and B
Procedure:
1. Shift axle to high range so fork is
square to axle face.
2. Remove shift unit and rubber boot.
3. Drop card over shift unit as shown
in (fig. 1) until card touches carrier
surface or interferes with fork.
4. If no interference, fork is OK.
Go to step #6.
5. If card interferes at A or B, care-
fully grind fork to fit template.
6. Replace boot and reassemble unit.
Dana service keeps
you on the road.
For technical assistance call 1-877-777-5360 anywhere in North America
Part no. 128039
10M/1290/MP
Copyright Dana 1991 All right reserved
2-Speed Shift Fork Fit-Up Card
Printed in U.S.A.