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PLEASE NOTE: the UPDATED (August 2019) Western Star Body Builder Book (V3.2) has begun! The update will roll out in sections and, when complete, will display links to both the new V3.2 update, and the V3.1 version (March 2017).

V3.2 will be applicable to EPA2010 and newer vehicles, for vehicles built prior to EPA2010 please select V3.1. V3.2 sections will be added below as they become available, so please check back!

You can download, view or print a section by clicking on the links below. You'll need Adobe Acrobat® Reader™ to view or print these files.

The CAD Data (Section 06D) includes Basic 2D Body Builder Drawings available for download in .zip format. To download, right-click on a .zip file, select "Save Target As," and save to your computer. Unzip the file, then view the .dxf Drawings with your CAD software.

DXF Drawings can be loaded by most 2D CAD software. See Section 06D for more details on 2D and 3D CAD format availability.

Technical Resource Guide

All 49X technical details can be found in the Technical Resource Guide (TRG). For access to the TRG, log onto

Comments? Questions?

Please contact the Body Builder Help Line by phone (1-855-253-0426) or email.
Hours of operation: 8:00 am - 7:00 pm (EST) / 5:00 am - 4:00 pm (PST)

Please include the following in your phone call or email:

  • Last 6 digits of Serial Number
  • Clear description of what you need to accomplish
  • WST Dealer contact name and phone number