During this procedure, will my AC charge leak out? I am quite certain I have changed radiators on my daughter's car and my 99 GMC Sonoma (both with working AC), and do not remember any issue with the AC?

Any help? I feel dumb at this moment.

 

The radiator and the AC condensor are two seperate systems. The condensor is usually in front of the radiator in most vehicles. I would follow the recommended Factory service procedures - or use a semi reputable source such as Chilton or Haynes.

 

The radiator DOES have connections for the automatic transmission fluid cooling, so that WILL leak out. Expect a mess unless you are ready for it.