TRAX 6000 spinning my 9500 lb tandem axle boat and trailer no problem. 

Basically I have Cement pad but it’s not large enough for me to pull my houseboat into it’s spot. I got this TRAX 6000 so I could spin the trailer and back it into my spot. I was skeptical at first since I thought it couldn’t do more than 6000 lbs but far from it. It doesn’t struggle one bit. Crazy strong and quite. This thing rocks.