Wow. This baby is a serious beast... It looks unstoppable! What a rig! More pics here.

 

Got a friend that put a CAT in a 79 F250 years ago. He still drives it. His is a lifted 4x 4 with tons of torque. Power goes thru an industrial grade 5 speed manual. I'm not sure sure which CAT engine he has but it is a turbo 6 banger. He did his the right way. It's not sitting in an F250 frame which isn't going to last long. He had a frame made by Holt Industries, owners of the San Antonio Spurs. All they do is CAT work. The pictured truck might look good but that frame will be toast in a year if they drive it much. These big engines have BIG harmonics that literally pull the steel apart. A 3208 CAT, these engines are known for tearing apart frames in the likes of Peterbilts, Kenworths, etc. Obviously the puny frame in the F250 doesn't stand a chance. Nice looking rig though as is is my friends.

 

I was actually wondering about what it would take to do this swap perfectly. It makes sense that you'd need a serious chassis to handle the power of the Cat.