[TR] What's that noise?

[terryrs at comcast.net]

>First, think about a piece of aluminum or plastic, like a coke can or plastic
>water bottle already flattened.  The sound it makes when you run over it -
>that's sort of like it.  Happens once in a while, within about 10 yards of
>starting off in first.  Sometimes followed by a sound more like the actual
>crushing of the can.  

I have absolutely no idea.  But it does sound like it's in the running gear. You've checked the driveline.  Tranny shifts normal.  I'm wondering if there's something in the brake system that seizes occasionally when you stop the car, and moving unlocks it making that sound?  ...Or something inside the axle shaft?

Terry Smith, '59 TR3A
New Hampshire