SSM 52278

Service Bulletin Details

Public Details for: SSM 52278

Some 2021-2023 bronco (non-raptor) vehicles built on or before 09-jul-2023 may exhibit a fluid leak from the front drive axle pinion seal. This may be due to operating the vehicle under high load. If leaking, replace the pinion seal followi

- 2023 - 2022 - 2021 -

Models from 2023

2023 FORD BRONCO

Models from 2022

2022 FORD BRONCO

Models from 2021

2021 FORD BRONCO

2/27/24, 1:01 PM
2021 Bronco
SSM 52278 2021-2023 Bronco - Front Axle Pinion Seal Leak - Built On Or
Before 09-Jul-2023
Some 2021-2023 Bronco (non-Raptor) vehicles built on or before 09-Jul-2023 may exhibit a fluid leak from the
front drive axle pinion seal. This may be due to operating the vehicle under high load. If leaking, replace the
pinion seal following Workshop Manual (WSM) section 205-03A > Removal and Installation > Drive Pinion
Flange and Seal. To prevent subsequent seal leaks, the front differential fluid must also be replaced using the
revised specification Motorcraft® SAE 75W-85 Premium Synthetic Hypoid Gear Lubricant, part number XY75W85-QL. Refer to WSM section 205-03A > General Procedures > Differential Draining and Filling. For
claiming use causal part number 3254 with applicable labor operations in Section 3 of the Service Labor Time
Standards (SLTS) Manual and M-Time. Reference this SSM article number in the warranty claim.
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