Alignment - Rapid Inside Edge Tire Wear
TSB 05-26-712/31/05
RAPID SHOULDER (TOE) WEAR ON INSIDE EDGE OF FRONT TIRES
FORD:
2004-2006 F-150
This article supersedes TSB 05-9-19 to update the vehicle model years and Service Procedure.
ISSUE
Some 2004-2006 F-150 vehicles (excluding Heritage) built before 11/1/2005, equipped with the following tires, may exhibit rapid tire shoulder (toe) wear on the inside edge of the front tires:
^ Hankook P235/70 R17 XL 108S, All Season, Black Sidewall
^ Hankook P235/75 R17 108S, All Terrain, Black Sidewall
^ General P255/70 R17 lbs, All Terrain, Outline White Letter (OWL)
^ Continental P255/65 R17 108S, All Season, OWL
ACTION
It may be necessary to adjust alignment and rotate and/or replace tires. Refer to the following Service Procedure.
SERVICE PROCEDURE
NOTE
THE REVISED TOE SETTING IN THIS TSB APPLIES ONLY TO THE TSB RELATED TIRE WEAR CONCERNS AND SHOULD NOT BE USED AS A REVISED SETTING FOR VEHICLES THAT ARE NOT SPECIFICALLY ADDRESSED IN THIS TSB.
NOTE
REFER TO WORKSHOP MANUAL SECTION 204-00 FOR ALIGNMENT PROCEDURES. REFER TO THE WARRANTY AND POLICY MANUAL FOR TIRE AND ALIGNMENT REIMBURSEMENT COVERAGE.
SHOULDER (TOE) WEAR ON THE INSIDE EDGE (HANKOOK AND GENERAL/CONTINENTAL TIRES)
1. Visually inspect the tires to determine if shoulder (toe) wear exists (Figure 1). Measure the tread depth of each rib and compare it to the inside shoulder (Figure 2). If tread depth of the inside shoulder is worn more than 1/2 of the tread depth of other ribs, the tires are exhibiting inside shoulder (toe) wear.
2. If shoulder wear is found, follow Steps a or b.
a. If the inside shoulder ribs are worn to 5/32" (4 mm) or less, replace both front tires with new tires. Also inspect the rear tires for abnormal wear (if rotated) and replace if necessary. Ensure that the camber and caster readings are within specification, set the front total toe to 0.30 +/- 0.05 degrees.
b. If front tires are showing early signs of inside shoulder wear but tread depth is acceptable, rotate the tires from front to rear DO NOT CRISS-CROSS. Ensure that the camber and caster readings are within specification, set the front total toe to 0.30 +/- 0.05 degrees.
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
OPERATION DESCRIPTION TIME
052607A 2004-2006 F-150: Inspect 1.9 Hrs.
Tires Rotate Tires Front To
Back, Check And Adjust
Alignment
052607B 2004-2006 F-150: Inspect 2.1 Hrs.
Tires, Replace/Balance
Front Two Tires, Check
And Adjust Alignment
052607C 2004-2006 F-150: Inspect 2.4 Hrs.
Tires, Replace/Balance All
Four Tires, Check And
Adjust Alignment (Do Not
Use Any Of The Labor
Operations In This TSB
With 1007AFT, 1007AB,
1007ABT, 1007D3T,
1007D3F, 1007D3FT,
1007D3B, 1007D3BT,
3001A, 3001A1, 3001A1T,
3001A6)
DEALER CODING
CONDITION
BASIC PART NO. CODE
FRONT (ALIGNMENT) USE WITH
OPERATION "A" W6
TIRE (TIRE REPLACEMENT) USE
WITH OPERATION "B" OR "C" 30
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