Thanks Ldub, Scott, and Chopper for the input,
Well I'm gonna find out I guess on Monday and give everyone an update.
I got the radiator removed this pm. It was 97 degrees out here in Granada Hills. The radiator came out in 30 minutes and was pretty straight forward.
Turns out the plastic top simply cracked horizontally along backside near the radiator cap. Nice 3 inch crack.
I called the dealer here and they want $488.00..course they have to order it.
Well I'll post more when a find out more..
Thanks again
John
ps...yeah I noticed the GM logo too