Welcome to GM Upfitter Integration

Mission Statement

The primary role of the General Motors Upfitter Integration group is to provide technical assistance to the hundreds of upfitters in the field who regularly modify our Light and Medium Duty Trucks for a wide variety of commercial applications. The assistance could be in the form of anything from an electrical schematic to guidelines for lengthening a frame rail. >> Learn More

Public Venues

One of the best ways for Upfitter Integration to reach the upfitter community is to recognize and support the upfitter industry's professional associations, such as:


NTEA - National Truck Equipment Association
RVIA - Recreational Vehicle Industry Association
SEMA - Specialty Equipment Market Association
NMEDA - National Mobility Equipment Dealers Association

We attend their conferences, tradeshows, and committee meetings as representatives of GM Engineering.


We also allow these associations to have access to our new truck products via Product Preview Shows. Product Preview invitations are issued through the upfitter associations for companies to come to our facility in Warren, Michigan to consult with GM Design Engineers, fit test parts, and make physical measurements (portable CMM allowed) on vehicles before Start of Regular Production (SORP).