2021 Ford F-550 SD Transmission and drivetrain Problems
- Complaints
- 1about this part
- Share
- 8%of 13 total for the year
- Median mileage
- 101,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the transmission and drivetrain of the 2021 Ford F-550 SD, 8% of the 13 complaints for this model year. Where a mileage was given, the median is 101,000 miles. 1 recall campaign on record is filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owns a 2021 Ford F-550 SD. The contact stated that while his son was driving at unknown speeds and making a right turn, there was an abnormal sound coming from the vehicle. The contact stated that the driver’s side rear dual wheel axle had fractured inside the differential housing. The contact stated that the axle shaft had fractured. The contact stated that the wheels were still connected to the hub and the vehicle lowered to the ground. There were no warning lights illuminated. Additionally, there was differential fluid still in the axle housing. …”
NHTSA complaint #11631487, filed 2024-12, 101,000 milesRelated recalls
- 21V390000May 25, 2021DO NOT DRIVEFord Motor Company (Ford) is recalling certain 2021 F-350, F-450, F-550, and F-600 vehicles equipped with dual rear wheels and front wheel hub extenders. The…Covers: Ford F-550 SD 2021, F-450 SD 2021, F-350 SD 2021 +1 more
Related service bulletins
- 11038166Oct 6, 2026For 20202026 vehicles equipped with the 10R140 transmission, a new Transmission Clutch Circuit Leak Test has been introduced in the Ford Diagnosis and Repair System (FDRS)…
- 11037979Oct 1, 2026This bulletin supersedes 24-2249. Reason for update: update the claim quantity of the torque converter nuts, part number and claim quantity of the front support assembly bolt…
- 11032694May 6, 2026This bulletin supersedes 25-2549. Reason for update: To add 2020 model year chassis cab vehicles. Some of the vehicles listed in the Model statement above may exhibit an…
- 11029923Mar 5, 2026This article supersedes TSB 24-2249 to update the claim quantity of the torque converter nuts, part number and claim quantity of the front support assembly bolt washers, and part…
- 11029724Feb 17, 2026Certain 2017-2025 F-450 – F-600 Super Duty Chassis Cab Upfitted with an Aerial Bucket Frame Rail Crack
- 11029081Feb 17, 2026For 20172026 vehicles equipped with a 10R transmission, a revision to the Road Testing Vehicle procedure has been made in the WSM, located in Section 307-01 > Diagnosis and…
- 11025854Nov 26, 2025This article supersedes TSB 25-2322 to update the Service Procedure, Labor Operations and Parts List. Some of the vehicles listed in the Model statement above may exhibit an…
- 11025526Nov 10, 2025Some 2021-2025 Expedition/Navigator/F-150/F-Super Duty/F-53 Motorhome/F59 Commercial Stripped Chassis/F-650/F-750/Transit vehicles equipped with a 2.7L/3.5L (non…
- 11025529Nov 6, 2025This article supersedes TSB 25-2119 to update the vehicles affected, parts list, and Service Procedure. Some of the vehicles listed in the Model statement above may exhibit an…
- 11024900Oct 29, 2025Some 2021-2025 F-150 vehicles equipped with a 5.0L/5.2L engine, 2021-2025 F-Super Duty/F-53 Motorhome/F59 Commercial Stripped Chassis vehicles equipped with a 6.8L/7.3L engine…
Transmission and drivetrain: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2021 | 1 | 8% |
| 2015 | 1 | 9% |
| 2014 | 1 | 11% |
| 2008 | 5 | 19% |
| 2007 | 1 | 4% |
| 2005 | 2 | 6% |
| 2004 | 6 | 12% |
| 2003 | 2 | 6% |
| 2002 | 1 | 5% |
| 2001 | 4 | 14% |
| 2000 | 5 | 7% |
| 1999 | 23 | 38% |
Other parts of the 2021 Ford F-550 SD
← All problems reported for the 2021 Ford F-550 SD
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology