I came across three pinewood derby cars from my childhood, circa 1990’s. I’m considering using the wheels and potentially the axles because the wheels do not have the lettering on the outer rim and lack the double step outer hub. The axles will not push into the holes I drilled with the SBE so they’ve got to be a bit thicker. I’m thinking about picking up a micrometer to verify. Our scout troop uses the outer edge guided plastic lanes so the outer rim rubs down the track. What do you guys think? Our rules are pretty relaxed.