“A Drop Box Solution For Hydraulic Pumps”

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The Harrison “HYDRA-DRIVE” Gear Drop Box is designed to work with the Ford F-Series chassis, factory ordered with the Ford Power Take-Off Provision (62R).

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


  • PTO: Chelsea 249-series output option XP
  • 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
  • PTO and hydraulic pump supplied with kit

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 measurements 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, no exceptions