Two-Speed
Transfer Case
Mission-Ready Performance in Every Terrain
The BASE two-speed transfer case delivers superior performance with a modern shell design, modular gear set, and lightweight aluminum housing. Equipped with an interaxle differential lock for enhanced traction and pneumatically actuated indicator switches for fast, reliable speed shifting, it ensures maximum mobility in dynamic operational environments.
Offering both remote and direct mount compatibility, it integrates seamlessly with a range of transmission families — including but not limited to Allison transmission.
Proven in the harshest conditions, BASE transfer cases are trusted in frontline vehicles from leading tactical vehicle manufacturers.
Maximum Power, Minimum Weight
The precision-engineered aluminum housing delivers substantial weight savings, enhancing payload capacity and fuel efficiency for tactical vehicles, while maintaining the structural integrity and performance required for demanding missions.
Available Configurations
BASE’s modular two-speed transfer case offers multiple ratio options in one housing, with in-house gear design enabling custom ratios for any mission need.
| MODEL | Input Speed | Input Torque | Drop Distance | Low Ratio | High Ratio |
|---|---|---|---|---|---|
| TK-330 | 4,000 rpm | 5,000 Nm | 330 mm | 2.8:1 | 5.85:1 |
| TK-420 | 4,000 rpm | 10,000 Nm | 420 mm | 0.94, 1.26:1 | 1.92, 2.34:1 |
| TK-423 | 3,500 rpm | 32,000 Nm | 423 mm | 1.04, 1.15, 1.23:1 | 1.92:1 |
| TK-535 | 3,800 rpm | 20,000 Nm | 535 mm | 1.16:1 | 2.55:1 |