Front driven wheel question.
 

I'm working on a dump truck, I mocked up the front and rear wheels. I'm using the metal axle set from rcbrmin. I have rc4wd rims metal ones, with black inner hub on my Aeromax stock front axle. I'm planning on using same for dumptruck. If I get the hex adapter hub will that be correct and give the wide stance? Or what do you guys use for front driven axles ?