Here is a NEW 500-670 Series Power Steering Box for your 55-57 Chevy.

This Chevy 670 steering box (also known as the 500 box) is the best way to upgrade your classic to modern power steering. Your wont believe how well your classic Chevy drives once you install this box. If you want your car to truly drive like a brand new car, install the new 500 steering box today.

• One piece cast iron housing.
• 14:1 ratio for better fell/quicker steering than original or 605 steering.
• Used stock mounting holes and Pitman arm.