OER SGB5557 Features:

Power steering gearbox for 1955-57 Chevy 150, 210, Bel Air models. The OER 500/670 style power steering box is a key component in most high performance modern style power steering systems. This box is a superb value and perfect as the basis of your power steering project. NOE: This Steering Gear Box will not fit with 3 Speed Manual Transmission on the column.

• 3/4"-30 Input Spline
• Steering ratio is 14:1
• Easy replacement for GM 605 box
• Use Original Pitman Arm
• Features One-Piece Housing
• 14:1 ratio Input shaft is 3/4 in.-30 spline (the same as the 605 box)
• Sector shaft is 1 36-4 tapered spline, the same as the original 1955-64 pitman shaft
• Pressure fitting is 7/16" tube (11/16"-18 inverted flare port)
• Return fitting is 3/8" tube (5/8"-18 inverted flare port)
• Overall distance from top of adjuster to end of pitman shaft is 14"
• Length of housing where it bolts to the frame in a 3-bolt pattern is 6-3/8"
• Bolt pattern is 3-3/16" center to center on two holes parallel with pitman shaft
• Bolt pattern is 3-1/8" center to center on two holes perpendicular to pitman shaft
• Overall length of main body from input shaft to end of housing is 11-3/4"
• From tip of input shaft to center of output housing is approx 7-1/2"
• From end of pitman shaft to center of input housing is approx 10-3/4"