The bone of contention seems to be the use of the word 'identical' to describe the Model G's front pairs and rear pairs of wheels. The correct word is 'similar'.
i·den·ti·cal/ˌîˈden(t)ək(ə)l/
adjective
alike in every detail; exactly the same.
sim·i·lar/ˈsim(ə)lər/
adjective
resembling without being identical.
i·den·ti·cal/ˌîˈden(t)ək(ə)l/
adjective
alike in every detail; exactly the same.
sim·i·lar/ˈsim(ə)lər/
adjective
resembling without being identical.