Have just looked at the Cat 140 brochure link that Graderfan posted. Cat has sure back tracked from the M series. I was a little disappointed in the torque specs. At 827 lb/ft, it's not bad, but still lacks the sheer "grunt power" of our Deeres. We have a pair of 770Gs,that have a low end torque rating of just over 900 lb/ft. They have 9L engines. That bit of extra torque is not required for normal grading, but is very help full when plowing snow. We had a pair of G946 Volvos before we bought the Deeres, and when doing heavy plowing, they were constantly downshifting, to the point of not throwing the snow far enough from the wing. They were rated slightly higher on hp, but only had, if I remember correctly, about 630 lb/ft of torque, coming out of 7.2L engines