Fulltext TSBs

Technical Service Bulletins

TSB
03-22-4
  • WHEEL – CORRECT LUG NUT TORQUE SPECIFICATIONS – INCREASED WHEEL NUT AND STUD SIZE – SERVICE TIP
Publication Date: October 27, 2003

FORD:
2000-2004 EXPEDITION, F-150
LINCOLN:
2000-2004 NAVIGATOR

This article supersedes TSB 99-26-3 to update the vehicle model years.

ISSUE:

All 2000-2004 F-150 (excluding F-150 equipped with 7-stud wheels and the 7700 payload group) and Expedition/Navigator built on or after November 27, 1999 will have revised wheel stud and wheel nut diameters. The wheel studs/nuts will have increased thread diameter from 12mm to 14mm. This change will include revised wheels, center wheel ornaments, hubs, brake rotors, wheel nuts, and lug wrench (two piece design and 13 cm (5″) longer).

ACTION:

The 14mm wheel nut will require a 21mm socket, instead of the 19mm socket used on the 12mm wheel nuts. The torque specification for the 14mm wheel nuts is 200 N-m (150 lb-ft). A TORQUE WRENCH MUST BE USED TO INSURE PROPER TORQUE IS ACHIEVED. The torque specification for the 12mm wheel nut will remain at 133 N-m (100 lb-ft).

NOTE:THE 14mm PARTS ARE NOT INTERCHANGEABLE WITH THE PREVIOUS 12mm PARTS.

CAUTION:WHENEVER WHEEL/TIRE REMOVAL AND INSTALLATION IS REQUIRED, FOLLOW THE PROCEDURES AS OUTLINED IN THE APPROPRIATE WORKSHOP MANUAL (SECTION 204).

OTHER APPLICABLE ARTICLES:

NONE

SUPERSEDES:

99-26-3

WARRANTY STATUS:

Eligible Under Provisions Of New Vehicle Limited Warranty Coverage




Figure 1 – Article 03-22-4


NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by “do-it-yourselfers”. Do not assume that a condition described affects your car or truck. Contact a Ford, Lincoln, or Mercury dealership to determine whether the Bulletin applies to your vehicle.

Copyright © 2003 Ford Motor Company