Stacy L. Balzer
Operating Director
Service Engineering Operations
Ford Customer Service Division

Ford Motor Company
P. O. Box 1904
Dearborn, Michigan 48121

July 7, 2023
TO:

All U.S. Ford and Lincoln Dealers

SUBJECT:

Customer Satisfaction Program 22B34 – Supplement #1
Certain 2021-2022 Model Year F-150 Vehicles Equipped with 9.75” HD Axle – ¾ Float
Axle
Rear Axle Half-Shaft and Hub Assembly Replacement

REF:

Customer Satisfaction Program 22B34
Certain 2021-2022 Model Year F-150 Vehicles Equipped with 9.75” HD Axle – ¾ Float
Axle
Rear Axle Half-Shaft and Hub Assembly Replacement

New! REASON FOR THIS SUPPLEMENT
• Technical Instructions: Dealers are to follow the updated inspection procedure found in
Technical Information – S1 before replacing the axle shaft
• Mobile Repair and Pick-Up and Delivery information
• Labor Allowances information
• Part Ordering Information
• Owner Letter mailing schedule
PROGRAM TERMS
This program will be in effect through February 28, 2024. There is no mileage limit for this program.
AFFECTED VEHICLES
Vehicle

Model Year

Assembly Plant

Build Dates

F-150

2021

Dearborn

May 1, 2021 through September 30, 2021

F-150

2021

Kansas City

June 15, 2021through September 30, 2021

F-150

2022

Dearborn

September 16, 2021 through September 16, 2021

US population of affected vehicles: 17,549. Affected vehicles are identified in OASIS and FSA VIN Lists.
REASON FOR THIS PROGRAM
In some of the affected vehicles, the wheel end hub bolt may become loose or break and make a rattle
noise. This is often discovered by technicians during routine maintenance such as oil changes and tire
rotations when a rattle is found coming from the wheel cap. If the wheel end hub bolt breaks, the wheel
hub will remain attached and will not separate from the rear axle shaft.
New! SERVICE ACTION
Dealers are to review the vehicles warranty history for all claims and check if the warranty claims contain
the latest level parts (ML3Z-4234-E/H (RHS) and/or ML3Z-4234-F/J (LHS)). If one or both sides do not
contain the latest part number, dealers are to replace the appropriate axle(s) that does not contain the
latest level parts. This service must be performed on all affected vehicles at no charge to the vehicle
owner.

 Copyright 2023 Ford Motor Company

New! OWNER NOTIFICATION MAILING SCHEDULE
Owner letters are expected to be mailed the week of July 24, 2023. Dealers should repair any affected
vehicles that arrive at their dealerships, whether or not the customer has received a letter.
New! ATTACHMENTS
Attachment I:
Administrative Information
Attachment II:
Labor Allowances and Parts Ordering Information
Attachment III:
Technical Information
Attachment IV:
Mobile Service Repair Assessment
QUESTIONS & ASSISTANCE
For questions and assistance, contact the Special Service Support Center (SSSC) via the SSSC Web
Contact Site. The SSSC Web Contact Site can be accessed through the Professional Technician System
(PTS) website using the SSSC link listed at the bottom of the OASIS VIN report screen or listed under
the SSSC tab.
Sincerely,

Stacy L. Balzer

 Copyright 2023 Ford Motor Company

ATTACHMENT I
Page 1 of 3
Customer Satisfaction Program 22B34 – Supplement #1
Certain 2021-2022 Model Year F-150 Vehicles Equipped with 9.75” HD Axle – ¾ Float Axle
Rear Axle Half-Shaft and Hub Assembly Replacement
New! MOBILE SERVICE REPAIR ASSESSMENT LEVEL
• All repairs in this program have the following assessment level.
- Not a Mobile Service Repair
OASIS ACTIVATION
OASIS will be activated on February 14, 2023.
FSA VIN LISTS ACTIVATION
FSA VIN Lists will be available through https://web.fsavinlists.dealerconnection.com on February 14,
2023.
NOTE: Your FSA VIN Lists may contain owner names and addresses obtained from motor vehicle
registration records. The use of such motor vehicle registration data for any purpose other than in
connection with this program is a violation of law in several states, provinces, and countries. Accordingly,
you must limit the use of this listing to the follow-up necessary to complete this service action.
SOLD VEHICLES
• Owners of affected vehicles will be directed to dealers for repairs.
• Immediately contact any of your affected customers whose vehicles are not on your VIN list but
are identified in OASIS. Give the customer a copy of the Owner Notification Letter (when
available) and schedule a service date.
• Correct other affected vehicles identified in OASIS which are brought to your dealership.
• Dealers are to prioritize repairs of customer vehicles over repairs of new and used vehicle
inventory.
STOCK VEHICLES
• Correct all affected units in your new vehicle inventory before delivery.
• Use OASIS to identify any affected vehicles in your used vehicle inventory.
TITLE BRANDED / SALVAGED VEHICLES
Affected title branded and salvaged vehicles are eligible for this service action.
OWNER REFUNDS
• Ford Motor Company is offering a refund for owner-paid repairs covered by this program if the
repair was performed before the date of the Owner Notification Letter. This refund offer expires
December 31, 2023.
• Dealers are also pre-approved to refund owner-paid emergency repairs that were performed
away from an authorized servicing dealer after the date of the Owner Notification Letter. Noncovered repairs, or those judged by Ford to be excessive, will not be reimbursed.
• Refunds will only be provided for the cost associated with loose or separated wheel end hub
bolts.

 Copyright 2023 Ford Motor Company

ATTACHMENT I
Page 2 of 3
Customer Satisfaction Program 22B34 – Supplement #1
Certain 2021-2022 Model Year F-150 Vehicles Equipped with 9.75” HD Axle – ¾ Float Axle
Rear Axle Half-Shaft and Hub Assembly Replacement
New! RENTAL VEHICLES
•

Parts are NOT available:
o Rear Axle Shaft is on back-order.
o PARTS ESCALATION PROCESS (Vehicle Off Road) process has been followed and
COPIS ticket with VOR flagged has been submitted.
o Prior approval is required from the SSSC, submit contact type long-term rental for
consideration and approval if appropriate.

•

A ten-digit prior-approval code is required from the SSSC for rental vehicles, a new
approval code is required from SSSC every 30 days.
Follow Extended Service Plan (ESP) guidelines for dollar amounts. Prior approval is required
from the SSSC.

•

New! PICK-UP AND DELIVERY- Participating Dealers
Dealers participating in the Remote Experience Program:
• Refer to EFC12071, 2023 Remote Experience Program, Pickup & Delivery (PDL) Offset section
for additional details.

 Copyright 2023 Ford Motor Company

ATTACHMENT I
Page 3 of 3
Customer Satisfaction Program 22B34 – Supplement #1
Certain 2021-2022 Model Year F-150 Vehicles Equipped with 9.75” HD Axle – ¾ Float Axle
Rear Axle Half-Shaft and Hub Assembly
ADDITIONAL REPAIR (LABOR TIME AND/OR PARTS)
Additional repairs identified as necessary to complete the FSA should be managed as follows:
• For related damage and access time requirements, refer to the Warranty and Policy Manual /
Section 6 – Ford & Lincoln Program Policies / General Information & Special Circumstances for
FSAs / Related Damage.
• For vehicles within new vehicle bumper-to-bumper warranty coverage, no SSSC approval is
required, although related damage must be on a separate repair line with the “Related Damage”
radio button checked.
o Ford vehicles – 3 years or 36,000 miles
• For vehicles outside new vehicle bumper-to-bumper warranty coverage, submit an Approval
Request to the SSSC Web Contact Site prior to completing the repair.
CLAIMS PREPARATION AND SUBMISSION
• Claim Entry: Enter claims using Dealer Management System (DMS) or One Warranty Solution
(OWS) online.
o When entering claims:
 Claim type 31: Field Service Action. The FSA number (22B34) is the sub code
 Customer Concern Code (CCC): K02-Axle Whine/Howl/Groan
 Condition Code (CC): 01-Broken/Cracked
 Causal Part Number: 4234
 Part Quantity: 0
o For additional claims preparation and submission information, refer to the Recall and
Customer Satisfaction Program (CSP) Repairs in the OWS User Guide.
• Related Damage/Additional labor and/or parts: Must be claimed as Related Damage on a
separate repair line from the FSA with same claim type and sub code as described in Claim Entry
above.
IMPORTANT: Click the Related Damage Indicator radio button.
• Rentals: For rental vehicle claiming, follow Extended Service Plan (ESP) guidelines for dollar
amounts. Enter the total amount of the rental expense under Miscellaneous Expense code
RENTAL.
• Refunds: Submit refunds on a separate repair line.
- Program Code: 22B34
- Misc. Expense: ADMIN
- Misc. Expense: REFUND
- Misc. Expense: 0.2 Hrs.
o Multiple refunds should be submitted on one repair line and the invoice details for each repair
should be detailed in the comments section of the claim.

 Copyright 2023 Ford Motor Company

ATTACHMENT II
Page 1 of 2
Customer Satisfaction Program 22B34 – Supplement #1
Certain 2021-2022 Model Year F-150 Vehicles Equipped with 9.75” HD Axle – ¾ Float Axle
Rear Axle Half-Shaft and Hub Assembly Replacement
New! LABOR ALLOWANCES
Description
Inspect vehicles warranty history both RHS and LHS axle
shaft ARE updated with latest part number (ML3Z-4234-E/H
(RHS) and ML3Z-4234-F/J (LHS)), close FSA.
BOTH SIDES REPLACED
Inspect vehicles warranty history, both RHS and LHS axle
shaft are not updated with latest part number (ML3Z-4234E/H (RHS) and ML3Z-4234-F/J (LHS)), replace both rear
axle and hub assemblies, install rear tires. Includes axle fluid
check and top off.
ONE SIDE REPLACED
Inspect vehicles warranty history, one axle shaft is not
updated with latest part number (ML3Z-4234-E/H (RHS) or
ML3Z-4234-F/J (LHS)), replace either RHS or LHS rear axle
and hub assemblies, install rear tires. Includes axle fluid
check and top off.

Labor Operation

Labor Time

22B34A

0.2 Hours

22B34B

1.0 Hours

22B34C

0.7 Hours

New! PARTS REQUIREMENTS / ORDERING INFORMATION
Special Program Part Ordering:
To place an order for rear axle shaft assembly, submit a Special Program order in the DOW system.
SSSC contact is not required to order K-Coded parts on this program. More information can be
found in EFC 10642.
Part Number

Description – If one or both sides do not have the
latest part number, order and replace as required

Order
Quantity

Claim
Quantity

ML3Z-4234-E

RH Rear Axle Shaft Assy

As
required

1

ML3Z-4234-F

LH Rear Axle Shaft Assy

As
required

1

Caliper Anchor Bolts (2 required each side (4 per
As
4
repair)/4 per pkg)
required
Dealers will be notified via a DOES II communication if circumstances warrant a change in part supply
strategy and when open ordering resumes.
W718680-S439

Order the parts below through normal order processing channels:
Part Number

Description

Order
Quantity

Motorcraft Rear Axle Fluid (4 oz per repair/32 oz
1
container)