Welcome to GM Upfitter Integration - Body Builder Manuals
The Light and Medium Duty Body Builder Manuals that are published by Upfitter Integration contain a wide range of technical information, including electrical schematics, body and frame dimensions, exhaust system modification, etc..
The Body Builders Manual contains information that may be used in addition to the Incomplete Vehicle Document (IVD) for any manufacturer making alterations to a GM complete/incomplete vehicle. No alteration should be made to the incomplete vehicle which either directly or indirectly results in any component, assembly or system being in nonconformance with any applicable Federal Motor Vehicle Safety Standard or Emission Regulation.
The IVD is supplied with each incomplete vehicle, and provides information that should be used by intermediate and final stage manufacturers in determining conformity to applicable Federal Motor Vehicle Safety Standards (FMVSS).
Light Duty:
Vehicles include the Canyon/Colorado, Sierra/Silverado, Express/Savana, Tahoe/Yukon/Suburban , Uplander, etc.
Medium Duty:
Vehicles include the C Series (Chevrolet Kodiak & GMC TopKick), T Series - 6500 / 7500 / 8500 (Chevrolet & GMC), F Series - FTR / FVR / FXR / FXR-TDM (Isuzu), W Series - 3500 / 4500 / 5500 (Chevrolet & GMC), N Series, NPR / NPR-HD / NQR / NRR (Isuzu)
Original Equipment Alterations
Warranty does not cover any damage or failure
resulting from modification or alteration to the vehicle's original
equipment as manufactured or assembled by General Motors. Examples
of the types of alterations that would not be covered include: installation
or use of any non-GM part, accessory, materials, or the cutting, welding
or disconnecting of the vehicle's original equipment parts and components.
Light Duty 2011
Light Duty 2010
Light Duty 2009
Light Duty 2008
Light Duty 2007
Light Duty 2006
Light Duty 2005
Light Duty 2004
Light Duty 2003
Light Duty 2002
Light Duty 2001
Light Duty 2000
Light Duty 1999
Medium Duty 2010
Medium Duty 2009
Medium Duty 2008
Medium Duty 2007
Medium Duty 2006
Medium Duty 2005
Medium Duty 2004
Medium Duty 2003
Medium Duty 2002
Medium Duty 2001
Medium Duty 2000
Medium Duty W Series 2000
Medium Duty 1999
Medium Duty W Series 1999












