The baffle pass thru brackets for holding the upper ignition wires come with 7mm (.275 in) holes in them. The ignition wires for my airplane are closer to 8mm or .313 inches or 5/16" whichever reference you choose to use. Anyway there is no way to squeeze the wires into the pass thru so they must have the holes enlarged which I did with a 5/16 endmill.
I then took a few minutes to rivet the axle brackets on to the wheel pants. That's all folks!!!