help me please
 

I'm going to build a few RC Bruder truck can anyone please help by showing me there axle mount for drive on 12v 80rpm motors and how they mounted it to Bruder chassis cant see how big it needs to be and I am going to be leaving one spring mount on truck to fit the 4 motors to direct drive on wheels sorry about way I have asked I just hope some kind person can help so it mounting for axle with motors on I need thanks of reading this MIKE