[Walt Fricke]

Years of pre-tech for DEs included checking shocks. You pushed down on the fender with all your weight, and then let it off all at once. If the shocks were good, the car would go back to ride height and stay there. If a shock was failing, there would be a little bouncing around as the car settled down. Yes, the car didn't go down much - especially with a stiff track suspension.

I interpret the problem here to be much more than stiff T bars or shocks. His are stock, and no mention that he changed shocks - which usually get looser with wear. When you jack a car up by a suspension member, the suspension member itself should move as the spring twists to take up the load.

If the car has been lowered rather a lot, then it might be the bump rubber, but that ought not to show up with the side jacked up and the front hub hanging down before a jack is added there - at full droop there should be no bump rubber interference.