For decades, Fontaine Modification has been the company that the leading OEMs and fleets have turned to when they need chassis modifications. Properly modifying chassis for specific applications is a highly specialized field that requires experience, engineering expertise and the wherewithal to meet FMVSS standards.


Our in-house product development team designs and engineers every chassis modification to best meet the customer’s specific needs.

EZ Trac Hydraulic All Wheel Drive Installations

  • Advantages of driving front axle without sacrificing ride height, turning radius, and highway fuel mileage.

  • For more information go to www.eztracawd.com

Other Chassis Modifications

Individual customer requirements needed to make trucks work better and more efficiently means that, often, standard offerings do not fit all applications.  As a result, we install many types of chassis mounted equipment and engineer new products all the time.


Examples of chassis modifications:

  • Automatic Lubrication System Installations

  • All-Wheel-Drive Systems

  • Rear Spring/Air Suspension Swaps

  • Liquid Spring suspensions for ambulance service

  • Fuel Tank Swaps

  • Fuel Anti Siphon Devices

  • Body-builder prep or chassis component (Fuel Tanks/Air Tanks/DEF Tanks/etc.) relocations

  • Off-Loading Equipment

  • PTO installations

  • Wheelbase changes

  • Chassis mounted equipment

Alternative Fuel Solutions

With today’s emphasis on green initiatives, Fontaine can help satisfy your need for trucks powered with alternative fuels. Fontaine is certified to install alternative fuel engines, fuel delivery systems and complete packages at all service centers across the United States.


We have engineered, tested and installed compressed natural gas (CNG), liquefied natural gas (LNG) and propane (LPG) configurations to meet all regulatory requirements and to ensure consistent quality. We provide a multitude of tank sizes and diameters to fit all applications and available space on your chassis.


Services include:

  • Complete engine installations and changes.

  • Fuel tank packages for CNG, LNG or propane.

  • Methane detection systems.

  • Installation of complete alternative fuel packages

Suspension Changes

Auto Flex Suspension

  • A good alternative to standard springs.

  • Get more information here.

Liquid Spring

  • A good alternative for ambulance service.

  • Get more information here.

Fontaine Modification Company