Steering Gear - Manual: Description
General Motors uses the Saginaw steering gear unit. Different models are used. The Model 525 uses 3 bolts in the side cover while the Model 535 uses 4 bolts.
Steering gears are a recirculating ball-type. Proper engagement between sector and ball nut is obtained by adjusting screw. Worm bearing adjuster can be turned to provide proper preloading of upper and lower bearings.