A Drop Box Solution For Hydraulic Pumps

The HYDRA-DRIVE drops the hydraulic pump below the forward driveshaft and offers the ability to directly drive a Hydraulic Pump without the need for modifications to the transmission, thus keeping your warranty intact!


  • Input:: SAE A 2-bolt 7/8 13-Tooth spline
  • Output: SAE B 2-bolt 7/8 13-Tooth spline
  • Max Torque: 200 ft-lb (Full PTO torque rating)
  • Drop: 8” center to center
  • Ratio: 1:1
  • Pump rotation: Clockwise
  • PTO rotation: Counterclockwise


Harrison Hydra-Gen Hydra-Drive Specifications:

One (1) Harrison Hydra-Gen Hydra-Drive Gear Drop Box shall be provided.

The Hydra-Drive shall allow for the installation and use of a variable displacement hydraulic pump on any Ford F-250 series and larger.

The Hydra-Drive shall be a self-contained unit, not requiring additional cooling hoses or components.

The Hydra-Drive shall have a gear ratio of 1:1.

The Hydra-Drive shall have an Input to Output shaft measurement of 8″

The Harrison Hydra-Drive shall be designed, engineered, and manufactured by a single manufacturer with a minimum of 45 years of hydraulic experience, with no exceptions

Harrison Hydragen