NHTSA ID Number: 10202797
Manufacturer Communication Number: SSM 50238
Summary
Some 2021-2022 F-250 vehicles equipped with a 6R100 transmission, four-wheel drive (4WD), 3.73 rear axle ratio, and built on or after 01-Feb-2021 may exhibit a metallic grinding noise from the rear of the vehicle under light acceleration between 23-33 mph (37-53 Km/h). The noise is most prevalent in 3rd and 4th gear when the vehicle is warm. This may be due to normal driveline noise transmitting through the driveshaft. To correct the condition, replace the rear axle drive pinion flange using service part number HC3Z-4851-A. Also, replace the rear pinion seal. Refer to Workshop Manual (WSM), Section 205-02. For claiming, use causal part 4001 and applicable labor operations in Section 04 of the Service Labor Time Standards (SLTS) Manual.
2 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
FORD | F-250 SD | 2021-2022 |
APPLICABLE VEHICLES
2021 TRUCK: FE P558N SUPER DUTY
2022 TRUCK: FE P558N SUPER DUTY
NHTSA ID Number: 10201598
Manufacturer Communication Number: SSM 50138
Summary
Some 2021-2022 F-250 vehicles equipped with a 6R100 transmission, four-wheel drive (4WD), 3.73 rear axle ratio, and built on or after 01-Feb-2021 may exhibit a metallic grinding noise from the rear of the vehicle under light acceleration between 23-33 mph (37-53 Km/h). The noise is most prevalent in 3rd and 4th gear when the vehicle is warm. This may be due to normal driveline noise transmitting through the driveshaft. To correct the condition, replace the rear axle drive pinion flange using service part number HC3Z-4851-A. Also, replace the rear pinion seal. Refer to Workshop Manual (WSM), Section 205-02. For claiming, use causal part 4851 and applicable labor operations in Section 04 of the Service Labor Time Standards (SLTS) Manual.
1 Associated Document
Manufacturer Communications
SSM 50138 – 2021-2022 F-250 – 4WD – 6R100 – 3.73 Axle – Metallic Grinding Noise Under Light Acceleration Between 23-33 MPH (37-53 Km/h) – Built On Or After 01-Feb-2021
1 Associated Document
Manufacturer Communications
SSM 50238 – 2021-2022 F-250 – 4WD – 6R100 – 3.73 Axle – Metallic Grinding Noise Under Light Acceleration Between 23-33 MPH (37-53 Km/h) – Built On Or After 01-Feb-2021
NHTSA ID Number: 10200999
Manufacturer Communication Number: SSM 50032
Summary
Some 2021 F-250 vehicles equipped with a 6R100 transmission, four-wheel drive (4WD), 3.73 rear axle ratio, and built on or after 01-Feb-2021 may exhibit a metallic grinding noise from the rear of the vehicle under light acceleration between 23-33 mph (37-53 Km/h). The noise is most prevalent in 3rd and 4th gear when the vehicle is warm. This may be due to normal driveline noise transmitting through the driveshaft. To correct the condition, replace the rear axle drive pinion flange using service part number HC3Z-4851-A. Also, replace the rear pinion seal. Refer to Workshop Manual (WSM), Section 205-02. For claiming, use causal part 4851 and applicable labor operations in Section 04 of the Service Labor Time Standards (SLTS) Manual.
1 Associated Document
Manufacturer Communications
SSM 50032 – 2021 F-250 – 4WD – 6R100 – 3.73 Axle Ratio – Metallic Grinding Noise Under Light Acceleration Between 23-33 MPH (37-53 Km/h) – Built On Or After 01-Feb-2021
- Exceeds OEM specs Dexron ULV, Mercon ULV, Mercedes Benz 236.17, Nissan Matic P, JATCO 9 Speed, BMW 83-22-2-413-477 ATF 7 and many other ULV application - Silverado, Escalade, Yukon, Tahoe, Suburban, Escalade, BMWs, Ford Mustang, Ford Super Duty F250, F350, F-550, Raptor, Lincon, Ford Explorer, Navigator, GMC Sierra, Chevrolet Camaro SS, BMW / Mini
- EXCEPTIONALLY SMOOTH SHIFTING:: Delivers ultra-smooth shifting, long-term stability, high shear and oxidation stability, and eliminates shudder, slipping, or gear sticking even under severe loads such a towing or hauling - EXTENDED DRAIN: Long drain intervals of up to 100,000 miles+ for standard driving and 70,000 miles for heavy-duty applications
- TRUE ALL SEASON - ALL SERVICE: Engineered for extreme conditions with a pour point down to -50°F, very high thermal stability for hot weather and high film strength for continuous severe service use like towing, hauling in modern trucks.
- GM 10L80/10L90, Escalade (2021+ with 10L80), CT6 3.0TT and 4.2TT (2019+ with 10L80), Silverado 1500 (2019+ with 10L80), Camaro SS / ZL1 (2017+ with 10L80/90), Tahoe and Suburban (2021+ with 10-speed), Sierra 1500 (2019+ with 10L80), and Yukon and Yukon XL with 10 speed transmissions
- 1. Very low viscosity fluid improves fuel economy in vehicles requiring this fluid
- 2. Enhanced shear stability provides less viscosity loss for consistent operation and durability
- 3. Improved low temperature performance ensures proper transmission function at all temperatures
- Formulated with premium synthetic base oils to achieve low viscosity and minimize deposits
- Provides excellent thermal and oxidation performance
- Durable friction modifiers help prevent shudder
- Advanced anti-wear technology to better prevent gear wear
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