Can I replace the tumbler without having the Key?

This is on a 69SS.

Tha column is out of the car.

Thanks

yes you have to pull the stearing wheel, lock plate and turn signal switch.

http://www.chevelles.com/archive/files/69ignrem.htm

Here are two links to make the job quite easy. It just depends which type steering column that you have.

Standard (non-adjustable)Strg Column
http://www.corvettefaq.com/acar/StdColumnD&R110JA04.doc
http://www.corvettefaq.com/acar/StdColumnACarDisassemblyPage1.doc

or if it is a Tilt Column
http://www.corvettefaq.com/acar/TiltColumnD&R110JA04.doc
http://www.corvettefaq.com/acar/TiltColumnLineDrwg1.doc

Thanks.

It was a piece of cake.

You all are the best.