Truggy and monster truck are apples and oranges. You can't compare really. Even with the center dif option on the Revo it still has a gear reduction transmission, which is why they won't run in the same class. I may be wrong on this but I believe in the MT category the LST, LST2 and Savage or more along the lines of 1/8th scale where as the Revo is 1/10th.