We have several new part numbers added to our line for 55-57 Chevy power steering conversions.  All items are to convert manual to power steering.   All kits include our new power box, pump, mounting bracket,  2 Row Pump Pulley, Floor Mount, Hoses and Rag joint.  A column would be sold as a separate line item.  For people retaining the stock column, PN 990008 is the new column shaft, this shaft has a ¾-3 6 spline to connect to the  rag joint.  All Ididit Column shift columns use a ¾-36, the non column shift columns use 1DD.