Speedway Motors 525 Manual Steering Box with 3/4-30 Input Spline, 25:1 Ratio, Fits 1965-1991 GM Cars, Popular Hot Rod Steering Upgrade for Heavier Street and Muscle Cars

This Saginaw manual steering box fits many GM applications from 1965-1991 and probably many more. It accepts either our universal pitman arm (702-2940) or your stock GM arm (small style, like our 910-32552). Box has a 25:1 ratio (6.25 turns lock-to-lock) with a 3-13/16" long input shaft with 3/4" 30-splines. Input shaft is 3/4"-30 spline. 6.25 turns lock to lock. 25:1 ratio. If you turn the input clockwise, the output also turns clockwise. Stock specifications on this gear refer to it as 6 rounds lock to lock for a 24:1 ratio. 36 Spline. 1.058 Diameter Top of Splines. 1.100 Diameter Middle of Splines. 1.124 Diameter Bottom of Splines. Note: Steering box is not adjusted at the factory and therefore, it is necessary that the steering box be adjusted upon installation per the instructions as provided on the PDF instruction sheet.

• Wide GM Application Fitment: Manual steering box designed to fit many 1965-1991 GM cars, making it a great replacement or upgrade choice for classic street, muscle, and hot rod builds.
• 3/4-30 Spline Input Shaft: Features a 3/4-inch 30-spline input shaft that works with commonly available steering U-joints and couplers for easy integration into custom steering setups.
• 25:1 Steering Ratio: Provides a 25:1 steering ratio with approximately 6.25 turns lock-to-lock, delivering smooth, predictable manual steering feel on heavier vehicles.
• Durable Steel Construction: Built with a robust steel housing for strength and long service life, ideal for performance street cars and traditional hot rod applications.
• Hot Rod Friendly Mounting: Popular manual box for heavier hot rods and customs; compatible with Speedway Motors frame mounts for early Compatible with Ford frames and must be adjusted on installation to achieve preferred steering feel.