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Welcome to Advanced Vehicles Assembly
Advanced Vehicles Assembly, Inc. in Vassar, Michigan, is the off-road & engine design engineering experts with capabilities to tune a Powertrain to a vehicle for optimum performance. Our staff of application engineers have decades of real-world Powertrain development experience utilizing the resources of U. S. Engine Production to develop engines from Ford, GM, Chrysler, and Cummins for specific vehicle applications.
Premium Dashboard Solution For The HUMVEE®
Premium Dashboard Solution For The <strong>HUMVEE®</strong>

Interior Kits Available In:

  • Fitted complete dashboard assembly
  • Easily upgrade your HUMVEE® dash and instrument panels
  • Choose a basic dashboard layout or request custom punch outs
  • Flexible control switch inclusion for all of your accessories
  • Include vent louvers
  • Choose from a variety of gauge packages
  • Expertly fabricated to your exact specifications
  • Choose to have your dash wrapped with premium synthetic leather
  • Choose a truly customized look with our state of the art hydro-dipping solution
A proven Humvee® Powertrain Solution


The 6.5 Turbo Diesel Engine has proven to be a
workhorse and the go to engine upgrade for both


The 4L80E transmission was developed by GM to handle the demand of high torque vehicles. The 4L80E transmission has been tested and is recommended for the HUMVEE®. The 4L80E is an automatic transmission that was designed to be highly durable. The transmission includes an added overdrive gear, a lock-up torque converter and advanced electronic controls. We keep 4L80E transmissions in stock and offer fast shipping. Learn how our advanced cooling system can help maintain the life and performance of your transmission and other vital vehical components.

Popular Humvee® Upgrade and Replacement Products