The engine in the Navajo was a 4.0 liter V6 that made 160 horsepower. It's a bit underpowered for its size. It was paired with either a 4 speed automatic or 5 speed manual transmission.
There were 2 trim levels on this SUV: the base model and the LX. The added features on the LX were a leather-wrapped steering wheel and extra lighting on the interior. It hardly seems like enough to warrant an upgrade. There was also a premium package that added air conditioning and a stereo system.
Originally sold as a four wheel drive SUV, in 1992 a rear wheel drive model was offered. The base version in that year was called the DX.
After this truck was discontinued in 1994, Mazda would not make another SUV for 7 years when they made the Tribute.
This vehicle was part of the Firestone tire scandal. The 15 inch wheel models fitted with Firestones had a high failure rate that was blamed for 3000 serious injuries across all model lines, which included the Explorer and Mercury Mountaineer.
Navajos are not nearly as common as Ford Explorers, but you can still find them out there on the used car and SUV market. They have some good deals on eBay, and you can also find some parts there for far less than at the auto parts store.