icanfixall
Official GMM hand model
Listen to what others have told you happened to them. I too had some coolant leaks that turned out to be me not installing the factory thermostat correctly. The copper end gose in the block. then the gasket is sitting on TOP of that. Just make sure the stat sits in the recess groove in the block. Carefully install the housings and use some sealant on those 2 bolt threads. Use ONLY the factory thermostat or you will have heating issues cause the other stats can't pass enough water to keep things cool. Can't really tell you where the coolant is leaking by the pics but you may have a gasket not cleaned off the front cover completely.