Flaming River's 1960-72 Chevy Truck column is designed for non-airbag applications only. It comes with a column shift and if you want an accessory, such as dimmer switch, it should be ordered with the column and they will install it for you. Designed to use the existing OEM 2" diameter mounting hole.  The standard shaft on classic columns is 1" DD.  This column comes in a polished stainless finish.  All Flaming River columns are made from 304 grade stainless steel.  They will never rust and are chemically clean.

Tech Note: Neutral Saftey Switch location is 17" from bottom of splined shaft