Terra Drive Systems



Driving Technology that Starts with the Driver

From utility trucks to emergency vehicles, EZ Trac is designed to give you the drivability and confidence you need to get the job done when you have to go off road. EZ Trac allows you to cost-efficiently upgrade to on-demand all-wheel drive without the need to add drive lines, transfer cases or raise chassis height.

EZ Trac is the first commercially available, steerable hydraulic drive assist system to simplify and overcome traction and mobility issues without sacrificing ride quality, safety and control.

Efficient When You Need It. And When You Don't

EZ Trac has the unique and unparalleled ability to engage and disengage on the go at speeds less than 20 mph, so that with the flip of a cab-mounted switch, you have the control and traction you need to go from on-highway to off-road. And back.

Unlike conventional front-wheel drive systems, EZ Trac maintains factory turning radius, ride quality, ground clearance, overall height and allows for a lower center of gravity, making your vehicle less likely to overturn and easier to handle.

Giving Existing Vehicles New Levels of Mobility

EZ Trac's auxillary system seamlessly installs on your vehicle and can be retrofitted to most vehicles without putting extra stress on existing engine components. So you don't have to buy a new vehicle to reach new levels of performance.

Superior Handling with No Surprises

The ability to keep going is crucial to your productivity. That's why EZ Trac is designed to handle steep inclines, mud, ruts, wet or slippery conditions, and unstable roads. It also features improved clearance for load or truck Mounted cranes and equipment, making on and off-road Driving surprisingly uneventful. With up to 110 Hp output, EZ Trac gives you the confidence of knowing there are no roadblocks to what you can do.


•  Easy to engage and disengage on the go

•  Maintains ride quality and turning radius

•  Maintains ground clearance, cab and bed height

•  Lower center of gravity; less likely to overturn

•  Design allows for less fuel consumption

•  No windage loss in freewheel mode/disengaged


•  Off-road driving without getting stuck

•  Improved clearance for load or truck mounted cranes and equipment

•  No transfer cases


•  Installed quickly to reduce downtime

•  Installation and operation doesn't put extra stress on existing engine components

•  Highly qualified in-house TDS Drive engineers can tackle any project

•  Can be retrofitted