Engineering Innovative Solutions For more than 40 years, Fontaine Modification has been North America’s leading provider of innovative, OEM-quality custom truck modifications. We design, engineer, test and build innovative truck modifications and custom solutions which adapt commercial vehicles to specific vocational applications for OEMs, dealers and fleets. We have exclusive “ship-thru” agreements with the leading OEMs to maximize end-user convenience while minimizing delivery costs. Fontaine Modification Company consists of focused business divisions: > Medium and Heavy Truck Operations > Light Duty Truck and EV Solutions > Engineering Services