Thank you, thank you...
I found out that the gasket used with the slider window was different and used a lock strip. The non slider window was bigger than the frame of the slider, so a different gasket was required.
I dug around my stash and found a gasket I saved from a truck I parted out in 2010. It uses no lock strip. I did as Nitrousn suggested, I put the gasket on the glass, then I put a 5/16 rope in the channel. I was able to install it myself in about 10 minutes after I got my head on straight.
Thanks again guys. I appreciate the tips.