# Service bulletin 20904

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10191767
- Published by NHTSA: 2021\-05\-05
- Manufacturer's number: 20904
- Manufacturer's date: 2021\-04\-16
- NHTSA component: POWER TRAIN

## NHTSA's summary

Certain MV Series trucks built with Feature codes 14GVJ, 14GVX, or 14GVY \(Axle rear tandem, Meritor MT 40 series\) and with 14UNU \(Suspension, rear air tandem 6X4 IROS\) may have less than optimal driveline operating angles and this procedure is intended to improve inter axle differential reliability.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10191767-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10191767-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline

## Vehicles listed

- 2019 to 2020 INTERNATIONAL MV

JSON: [/v1/bulletins/10191767](/v1/bulletins/10191767)

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