Jim Carter ( oldchevytrucks.com ) offers a rebuild service for $194.25. You send in your core and he forwards it to a machine shop for proper rebuild. He also offers new reproduction stainless steel tongues. This is a great alternative for those of us who don't have the skill or patience to rebuild ourselves.
I concur with everyone who enjoys the open windshield when driving down the road on a hot day. Until it rains...
Kent