The Power Steering Gear Box 27-8405 by Maxpeedingrods is designed for Nissan Pickup trucks from 1986 to 1999, specifically for models with a 2.4L engine and rear-wheel drive. This aftermarket replacement part features a 36 spline input shaft with a diameter of 0.71 inches, and an output shaft diameter of 0.881 inches. It comes with 4 mounting holes and a black color finish. The gear box is a direct replacement with a power steering type and a superseded part number of Power Steering Gear Box and Steering Gearbox. It also has a California Prop 65 Warning for safety. Open box but item is new and never been installed.