CPP 500 Series™ Steering Box – 55-57 Bel Air


Our 500 Series Box for your Bel Air.


If on Backorder, please allow for a 4 week lead time time of sale.

Available on backorder


The 500 Series is truly the best of its kind. It is the only box on the market today manufactured with a one piece housing, “no welding,” all new parts (unlike our competitors!), uses original pitman arm and has a 14-1 ratio. CPP’s 500 Series box has been factory-tested to ensure quality that you have come to expect from us. This direct replacement for the 605 produces excellent road feel and driver feedback eliminating leaky, sloppy steering! Our Conversion Kit includes the 500 Series box with power steering hose kit and pump and early model small block Chevy V8 power steering pump bracket. Optional chrome finish and new pitman arms are also available.

SPECIFICATIONS: (for #CP50000 and #CP50003)
Steering ratio: 14:1
Input shaft is 3/4”-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 inv. fl.)
Return fitting is 3/8 tube (5/8-18 inv. fl.)


If on Backorder, please allow for a 4 week lead time time of sale.

Additional information

Weight 29 lbs
Dimensions 14 × 11.5 × 9 in

This product fits these years, make, and models.

Year Make Model
Year Make Model
1955 - 1957 Chevrolet Bel Air/210/150