Gotcha...so its right like that, still odd to see for me.
There was a Mopar at my track seriously twisting the rear and when I saw the leafs do that I honestly thought it was going to poke its driveshaft into the trunk. He may have been equiped similar, but it wasn't very fast and I think he was just beating on crap springs.
I destroyed 2 u-joints on my 76 Mustang within a few days trying to dial in the carb after a motor rebuild before I realized I was twisting the axle soooo bad that the pinion was nearly kissin the floor. So thats what I think of whan I see that.