I just bought an old 68 Diesel Scout with out a motor. I am planning a repower and I'm wondering what everyone thinks about the options. I am considering either a 6bt or a 4bt. It seems the 4bt would be easiest butr would have less horsepower. I am also worried about the shakes and vibration. With a 6bt I am concerned about the weight and my D44 axles. I have been scanning through the site and finding lots of info but I am trying to get an idea of the result before I get commited and start buying parts. I would love to get in contact with the guy that dropped a 6bt in his Scout. I have been trying to make out the pictures but they are small.