than the fronts on the 1:1, but the rear tires on the model are too tall/to high (and, perhaps, not wide enough, can't tell). Even in the references you provided the rear tires are not as tall. So, instead of modifying the rear suspension, perhaps the real fix is to put on wider and slightly lower profile rear tires. Of course, as they say, "the proof is in the pudding", so we'll not know until we have the model in hand.