i bought a Gator 4x4 hpx about 2 months ago and i love the thing i have never had a problem with it and it runs great. It is unstopable i can run over 2 inch trees no problem. the other day a lumber truck got stuck by our new barn carrying a ton of wood and i pulled him out with my HPX in low 4 wheel. i think the thing is amazing and i have never had a problem with it yet and yet gotten stuck. i beat on the thing. If you are having problems with this one i would go for the dissel because i am loving the gas one. i would get a HPX they are great!