Let’s Do the Math
J40 variants averaged around 3,500 lbs curb weight. Subtracting the I-beam as the seesaw for this little bout, that D8 had a tall order of 70,000 lbs he would have had to pull in order to win. If the Caterpillar D8 bulldozer came from roughly the same era as the J40s, then it would be likely the D8L or D8K. In either case, that’s 300 to 335 available horsepower. A single J40 would average a maximum of 90 hp. So, it would be 335 hp versus 1,800 hp. The Cat D8 weighs approximately 80,000 lbs. So, in essence, it was a somewhat equal fight in terms of weight. And an entirely uneven fight in terms of engine power and performance.
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