1948 September -- New plant for Chatham constructed on Richmond Street, at an original cost of $4 million, to replace the Old Chatham Wagon Works Facility on Grand Ave.
1972 50th Anniversary of building trucks in Chatham. $30 million dollars invested in plant modernization
1976 Women hired to join the assembly line operation
1983 Chatham converts to production of heavy duty and severe service truck models
1985 International Harvester Company continued to manufacture both trucks and agricultural equipment until 1985 when the agricultural equipment division was sold to Tenneco Inc.'s J.I. Case Company as part of a restructuring plan
1986 In February, International Harvester Company changes name to Navistar International Corporation, while still maintaining the International brand name for its trucks. The familiar IH logo is now replaced by the Diamond Road symbolizing a commitment to quality and the future
1994 Pro-sleeper production begins (August 2) in Chatham
1997 Chatham is converted to a Class 8, premium conventional plant. Sky-Rise Pro-Sleeper Cab launched (May 1). Board of Directors approves $24.6 million U.S. Modernization Proposal (October 15).
1998 50 years on Richmond Street