Can anyone tell me how to get an original build sheet on my car? I am trying to find out if the THS400 Transmission came stock in this car. I found where one site said that there was only one car made with the 400 transmission. All the others had a 350 or a 4 speed. I have gutted this car but did not see the original sheet. Is there a place where I can get a copy of this. If not, how can I find out if this car came from the factory with this transmission? Any help would be greatly appreciated. Thanks!