The next stage for my Big Ork Trakk was to add the front axels and suspension. The engine block was fixed to the main part of the vehicle.
I ensured that the drive shaft was connected to the engine block.
I then added the front axels.
You can see where I have digitally painted the part where it fits on the main engine block.
Another view of where the front axle and suspension goes.
More detailed view from underneath.
The workbench feature on the Big Trakk may help anyone else putting one of these kits together.