Purpose: This video was to show how this car ran with the stock plastic bearings. There was a lot of play at the suspension hubs because of the plastic bearings which I feel effected the steering accuracy and also the way the car planted the power to the road.
If you see the previous #1 video, you can see the rear wheel under acceleration has a lot of play and can actually hit the body. Granted, the '65 Mustang body doesn't have much clearance around it. Also, this play may make the wheels bounce and not effectively transfer power to the ground.
Remember the scene in Bullitt wheel Steve McQueen is in reverse? Remember the way the rear tire was bouncing around?