An 01 Chevy Tracker is roughly equivalent to an 01 Suzuki Vitara, there are some differences, for example, the Tracker has 15" wheels whilst the Vitara may be fitted with 16" ones, Vitaras with 16" wheels may also have larger brakes, but in terms of suspension modifications, etc., - they are pretty much the same vehicle.
The Vitaras may also have plastic wheel arch trim that the Trackers won't have, which, in theory, may allow a slightly larger tire on the Tracker without it fouling the trim - note that "in theory" - I believe that in reality you may that gearing becomes a problem before you reach that point.