# Service bulletin PB\_633

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: 10238851
- Published by NHTSA: 2023\-07\-07
- Manufacturer's number: PB\_633
- Manufacturer's date: 2023\-06\-20
- NHTSA component: SUSPENSION

## NHTSA's summary

This bulletin will provide instruction to measure current torque rod specifications to ensure that the correct Hendrickson® TRAAX ROD® torque rods and shims \(if applicable\) are ordered for replacement, if desired to change to. These torque rods and their bushings have a significantly increased component life for severe\-duty applications versus standard torque rods and bushings.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10238851-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10238851-9999.pdf)

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

## Components

Suspension

## Vehicles listed

- 1999 to 2006 PIERCE CUSTOM CHASSIS

JSON: [/v1/bulletins/10238851](/v1/bulletins/10238851)

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