The 4x2 tractor can't get the rig moving on a slippery upgrade, so the trailer's powered rear axle provides a boost. Photo: Tom Berg from SAF-Holland video Powered trailer axles are unusual, even in ...

We all know that fixing up your 4x4 to stronger parts can allow you not only to run bigger tires but also do more work with your vehicle, but did you know that it’s possible to do the same thing with ...