I was looking at the spec sheet that I have in the owners manual. The L3400 has a dry-type dual stage clutch and live continuous running pto. Not a whole lot of difference between the two tractors that I can tell. I will be trenching power and water out to the barn this weekend and I will get to use a friends boxblade to move some dirt back into the trench. Can't wait to play around a bit and get her dirty. Gunman