Bulkhead Split Bus 08/62-07/67Silver Weld Through (SWT) This is the later model bulkhead, also known as 'full moon' and is used from August 1963 to July 1967. The reason why VW introduced a new model bulkhead at the time was very simple: because of a change in the arrangement of the seats. If your bus has a 1 piece front seat, then you need the half moon bulkhead and if your bus has a 1 3 + 2 3 arrangement of the seats then this full moon bulkhead is required. A top quality panel