Ofna Starter box
I use the small OFNA box for my CD3 Pro car and CD3 RTR cars. It helps setting up the chassis alignment if you have a blank chassis plate available.
The right wheels are close to the starter box just because it has to be offset to align the flywheel to the starter wheel.
I also mounted and angle bracket on each side to ensure chassis alignment.
If I had one mounted on the rear the box would be perfect.
I also clearenced the flywheel access area of the chassis with my dremel tool.