Cab Tilting; Rear Axle Shift Motor; Before You Tilt The Cab - GMC T-Series 2007 Owner's Manual

Rear Axle Shift Motor

When to Check and Change Fluid
If you have an optional air-shift two-speed,
controlled traction, or locking differential type rear
axle, a good time to check the fluid level in the
axle shift motor is when the rear axle lubricant is
checked.
How to Check Fluid
Remove the plug on the front plate of the axle
shift motor, add enough fluid to raise the level to
the bottom of the filler plug hole, then replace
the plug.
What to Use
Refer to your Maintenance Schedule to determine
what kind of lubricant to use. See Part C:
Recommended Fluids and Lubricants on page 321.
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Cab Tilting

Before You Tilt the Cab

Most fluids and lubricants requiring regular
checking can be accessed at the back of the
cab. If you need to gain access to components
under the cab, follow this entire procedure
carefully.
•
Find a level place to tilt the cab.
•
Secure all loose articles in the cab and close
the cab door.
•
Check for adequate clearance in front and
above the cab.
To help prevent the vehicle from moving:
1. Apply the parking brake.
2. Place the automatic transmission in PARK (P)
or shift the manual transmission to NEUTRAL.
3. Turn the engine off.
4. Block the front and rear wheels.