Initially designed as a heavy equipment transport to be deployed in the Middle East, the Navistar 5000MV is an outstandingly beefy tractor outfitted with military-grade AWD system allowing it to haul impressively heavy loads and venture into moderately off-road environments with relative ease. However, due to certain structural quirks, it cannot be differential lock-enabled, somewhat limiting its off-road performance.
A very sturdy gearbox optimized for harsh off-road conditions, sacrificing fuel efficiency, top speed and gear count in exchange for three Low Gear stages.
A high-range gearbox variant with increased gear count and top speed, and an additional High Gear at the cost of lower durability.
A specialized gearbox allowing free Low Gear / R Gear transfer ratio tuning. Notoriously fragile and not very fuel-efficient in AWD mode owing to its mechanical complexity.