FORD 2004 F-150 v.1 - Manual (Page 260)

4 Approximate dry fill capacity including transmission fluid cooling
system, actual refill capacities will vary based on vehicle application and
transmission fluid cooling system (i.e. coolers size, cooling lines. auxiliary
cooler capacities). The amount of transmission fluid and fluid level
should be set by the indication on the dipstick’s normal operating range.
5 Your vehicle’s rear axle is filled with a synthetic rear axle lubricant and
is considered lubricated for life. These lubricants do not need to be
checked or changed unless a leak is suspected, service is required or the
axle assembly has been submerged in water. The axle lubricant should
be changed any time the rear axle has been submerged in water.
6 Service refill capacity is determined by filling the axle to 6-14 mm
(1/4-9/16 inch) below the bottom of the filler hole with the vehicle on a
level surface.
Add 118 ml (4 oz.) of FEHP Friction Modifier, XL-7 or equivalent, for
complete fill of 8.8 inch and 9.75 inch Traction-Lok axles.
7 Service refill capacity is determined by filling the axle to the bottom of
the filler hole with the vehicle on a level surface.
For 10.25 inch Traction-Lok axles, use 3.1L (6.5 pints) of Motorcraft SAE
75W-90 Fuel Efficient High Performance Synthetic Rear Axle Lubricant
and 118 ml (4 oz.) of FEHP Friction Modifier XL-7 or equivalent.
8 Use of synthetic or synthetic blend motor oil is not mandatory. Engine
oil need only meet the requirements of Ford specification
WSS-M2C153–H and the API Certification mark.
Maintenance and Specifications
260