I've given this issue some thought
tha housings definately need some up grade
it takes over the weight of my pans to bow these housings which is flatening the mammoth tires unfilled . 1 major faill point is the axle extension at the screw area not much meat for plastic
and they just look to spinly not big loader like so like my mack , I'll be making new housings
steel I think will be overkill . There is plenty of room to fit everything needed
+ an operator in the cab .