A lot has to do with riding style. If your pinned in the mud all the time everything will break or especially with the diff locked!! Big rubber is also hard on the machines. Just sayin.
Pushing your sled off the back off your frosty truck bed only to have your feet slip out from under you and your face becoming a permanent part of the hood. Nothing like your buddies showing up and you got blood gushing out your chin. :nono:
I found with mine that the battery charge made all the difference. Ended up getting a new battery and the problem was gone. Old bat would crank fine but she wouldn't fire. If your not sure when its been sitting put a charger on it and then try, see if it makes a difference ...... do not boost it!!!