Truck Levelers Ask An Expert Request a Quote Request Service Or give us a call: 1-888-606-9415 Hydraulic Truck Levelers are used when a dock is too high or low to properly service vehicles with standard dock levelers. Our truck levelers safely raise or lower the truck and truck trailer itself to match the load height with the loading dock. Customizable and flexible, truck levelers are a great solution when a loading dock area needs to accept a variety of truck types and sizes but does not have the option of assigning specific truck bays to specific truck types.