Is there a trick to this or could nine be screwed up? It's an 80 K5. The rear glass rolls down. I have never had the tailgate down since I bought it...been under the hood replacing the motor. Anyway, I thought maybe the key would unlock it but when I turn the key the only result I can see is that the windows doesnt roll up or down. When I grap the handle inside I can fell some tension and I see the catches on the side moving a little (very little) but not enough to open the tailgate. Am I missing a trick or what?