Transfer Case Fluid; Driveline Universal Joint And Slip Yoke; Air Filter Maintenance - Ford 2008 F-250 Owner's Manual

Maintenance and Specifications
TRANSFER CASE FLUID (IF EQUIPPED)
1. Clean the filler plug.
2. Remove the filler plug and
inspect the fluid level.
3. Add only enough fluid through
the filler opening so that the fluid
level is at the bottom of the
opening.
Use only fluid that meets Ford specifications. Refer to Maintenance
Product Specifications and Capacities in this chapter.

DRIVELINE UNIVERSAL JOINT AND SLIP YOKE

If the original universal joints are replaced with universal joints equipped
with grease fittings, lubrication will be necessary. Refer to the
replacement universal joint manufacturer's recommendation for
lubrication type and maintenance intervals.

AIR FILTER MAINTENANCE

Refer to the scheduled maintenance information for the appropriate
intervals for changing the air filter element.
When changing the air filter element, use only the Motorcraft air filter
element listed. Refer to Motorcraft part numbers in this chapter.
348
2008 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)