HFB64080 Power Steering Gear TRW/Ross Ford E2HZ3504B HFB642978-4H. Heavy duty power Steering gear Box Ross/TRW HFB64080. Fit on Ford truck with power steering cylinder on front right axle (16,000Lbs and more axle), steering gearbox cast # HFB642978-4H (4 lines) and OE #: E7HT3N503FA-E2HZ3504B. Power steering gear box, gearbox professionally remanufactured to OEM specs, hydraulically tested. New seals, new bearings, shaft replaced and hight pressure tested. This item requires a $500(CAD) refundable core deposit in addition to the purchase price. UPS cheapest rates will be charged on your credit card to pay return core shipping. This charge will be applied on the core refund. All UPS return paperworks will be includes with the shipment. Just call UPS to get the core picked up ready with papers we provide you.