Hi Mike

Just to clarify (English isn't my first language) The starter switch you are talking about in the column is this one?
More Information for AIRTEX / WELLS 1F5

1973 CHEVROLET IMPALA 5.7L 350cid V8 Ignition Starter Switch | RockAuto


Can i acces without taking the steering wheel off, or do i need to do the same precedure as changing the lock cylinder?
I came around to here when change the lock cylinder:
http://www.fieros.de/jpg/col10.jpg

Do i need to get "deeper" in?

Ref.: Illustrated tilt steering column disassembly