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 ...

If you're looking to make upgrades and repairs to your old tired axles or to rebuild junkyard iron, or you need complete replacement assemblies, then you just got lucky! We've gathered a few new ...