GMC Sierra Power steering gear box 2001-2006. Power steering gear box, gearbox professionally remanufactured to OEM specs, hydraulically tested. New seals, new bearings, shaft replaced and hight pressure tested. OEM # 26100337, 19150135, 26099875. 33 splines on sector 3 flat. Fit on Chevrolet Silverado, GMC Sierra 1500 2001, Silverado-Sierra 2500 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 w/33 splines, 3 flat spot on sectore shaft, Silverado- Sierra 3500 2001-2006 w/33 splines, 3 flat spot on sectore shaft, GMC Yukon XL 2500 2000-2001. This item requires a $175 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.