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Pathfinder Chassis is headquartered at in Sun Prairie, Wisconsin.

JJ Fabrication, Inc. is the manufacturer of Pathfinder Chassis brand asphalt late model stock cars and quality suspension components. We currently offer offset (straight rail) chassis, truck chassis and NASCAR perimeter chassis (NASCAR Touring Series legal).

In 2006, Pathfinder debuted an updated soft spring big bar chassis. We are also offering a front suspension package to update your Pathfinder chassis to the 2006 soft spring big bar package.

In addition to all of the other services Pathfinder has previously offered, we are now offering Dyno-Mite Shock Service, specializing in Penske Racing Shocks. Pathfinder Chassis has built winning cars for many of the midwest's finest drivers. Our past customers have included NASCAR stars Matt Kenseth, Scott Wimmer & Travis Kvapil. Pathfinder Chassis offers a number of services, including chassis repair & setup, shock dyno and quick change rear end service. We also carry a complete inventory of chassis and suspension parts.