Chevrolet 30 Series 1967 Service Manual page 197

F ig . 75 - E le c tric Shift Control Switch
Fig . 76 - E le c tric Shift U nit Mounting
GENERAL MAINTENANCE
The only general maintenance necessary on the shift
control system is to make sure that all wiring is in good
condition, with connections tight at terminals, connectors,
and that the axle shift unit is filled with lubricant to
proper level.
The shift unit should be filled with lubricant to the
filler opening on the front cover using SAE 10 engine oil.
At ambient temperatures below 0 °F use SAE 5W. The oil
level should be checked every 10,000 miles or 3 months,
whichever occurs first.
AXLE
SERVICE OPERATIONS
SHIFT UNIT SERVICE
Removal
2. Remove two shift housing to ca rrie r stud nuts and
3. Remove shift unit assembly from carrier (fig. 79).
REAR SUSPENSION AND DRIVE LINE 4-39
Fig. 77 - Shift U n it in High Range Position
Fig. 78 - Shift U nit in Low Range Position
1. Disconnect one of the battery cables.
lock washer (fig. 76).
Check condition of rubber seal assembly between
shift unit and ca rrier. This seal must be in good
condition and be held tightly to the shift yoke by the
spring clamp to prevent axle lubricant from leaking
into shift unit.
CHEVROLET TRUCK SERVICE M ANUAL