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.
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.
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GM Upfitter Integration.