NHTSA ID Number: 10202796
Manufacturer Communication Number: SSM 50237
Summary
Some 2021-2022 F-250 vehicles equipped with a 6.7L engine, 10.5 inch Sterling rear axle with a 3.55 gear ratio (tag S403N), and four-wheel drive (4WD) built on 01-Jun-2021 and through 01-Oct-2021 may exhibit a driveline vibration and/or growl/roar noise between 1700-2100 RPM. Before performing normal diagnostics in the Workshop Manual (WSM), inspect the rear axle to verify if a damper is installed on the pinion flange. If a damper is present, refer to WSM, Section 100-04 for normal diagnostics. If no damper is present, replace the rear axle drive pinion flange using service part number HC3Z-4851-A. Also, replace the rear pinion seal. Refer to 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 – 2022 TRUCK: FE P558N SUPER DUTY
1 Associated Document
Manufacturer Communications
SSM 50237 – 2021-2022 F-250 – 6.7L – 4WD – 3.55 Axle – Vibration And/Or Groan/Roar Noise Between 1700-2100 RPM – Built On 01-Jun-2021 And Through 01-Oct-2021
- 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
- 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
- Meets and exceeds DEXRON ULV & MERCON ULV Specs -Formulated to meet OEM specifications for modern Ford and GM 10-speed transmissions requiring ultra-low viscosity ATF like DEXRON ULV and MERCON ULV.
- Enhanced with FR3 Friction Reducer - Features our proprietary FR3 for smoother gear shifts, reduced wear, and improved thermal stability—delivering superior transmission performance.
- Professional Grade, DIY Ready - Perfect for shops and advanced DIYers. Compatible with most ATF fluid exchange systems and transmission service kits. Always consult your vehicle's manual for correct specification.
- Maximum Performance - GREEN DIAMOND ULV ATF also provides increased oxidation and thermal stability, deposit and sludge prevention, reduced breakdown, longer drain intervals and higher wear resistance than our competitors.
- Compatible With Ford & GM 10-Speed Vehicles - Designed for use in vehicles requiring ULV ATF including Ford F-150, Expedition, and GM Silverado, Sierra, Tahoe with 10L80, 10R80, or 10-speed automatic transmissions.
- 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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