FORD 2004 Ranger v.1 - Manual (Page 145)

It is not recommended that the vehicle be operated in 4WD modes with
a “temporary” (i.e. dissimilar size) spare. If 4WD operation is necessary,
do not operate above speeds of 16 km/h (10 mph) or for distances above
80 km (50 miles).
If you use the temporary spare tire continuously or do not follow
these precautions, the tire could fail, causing you to lose control
of the vehicle, possibly injuring yourself or others.
When driving with the temporary spare tire do not:
• Exceed 80 km/h (50 mph)
• Load the vehicle beyond maximum vehicle load rating listed on the
Safety Compliance Label
• Tow a trailer
• Use more than one temporary spare tire at a time
• Use snow chains on the end of the vehicle with the temporary spare
tire
Use of a temporary spare tire at any wheel location can lead to
impairment of the following:
• Handling, stability and braking performance
• Comfort and noise
• Ground clearance and parking at curbs
• Winter driving capability
• Wet weather driving capability
Conventional spare tire information
If you have the spare tire that is the same size as your other road tires,
you can use the spare as you would any of the other tires. The spare tire
will be equivalent to your road tires, although it may not have the same
appearance (black-side wall instead of outlined-white letters).
2004 Ranger (ran)
Owners Guide (post-2002-fmt)
USA English (fus)
Roadside Emergencies
145