2 gauge panel for 1-1/2" steering column, two gauge holes are 2-1/8", cast aluminum with shot peen finish. This item is avaliable 2 ways.
First is a 1pc that slips over the column and is held by a 1/4x20 set screw.
Second is a 2pc design that has a removable cap to install without removal of the column.
The 1pc can be opened up to accept a 1-3/4" column, we can do that at no charge.