I just finished replacing the head gaskets because I was burning coolent. The white smoke on a hot day. The job started in early july. I just finished today and started the engine. Runs great, no smoke. Then when I tried to back it out of the dive way, the trans would not engage in any gear. The car was on jack stands in the front only, for four days. I has the shudder, trans cooler, mercon V. I am checking to see if I may have missed a connector, but I didnt take any trans connectors off. Please help!