I have a 455 rancher as well. 5 years old,new gas every year and I still have to bring it in to get worked on EVERY time I need it. 400 dollar saw that costs about 70 dollars labor/parts everytime I need it. It would be more cost effective to purchase a throw-away saw to cut wood with. Not at all happy. Also had a 372 XP and it didn't even last 6 hours!