[nathanmargolis]

Never knew your BD was #53, sat for so long, and so few miles. Shows one that a car must be driven.
It was a balancing issue in the hub. Have not seen it done in over 35 plus years but remember the "good shops" would do a spin balance with wheel & tire on the car vs. old bubble balance. The spin balance machines like you see now were not around where tire/wheel are spun on a machine and then placed back on the car when completed. Guess if you found a place that did the early spin balancing method earlier in the trouble shooting, it would have been saved you lots of time.
Enjoy the Cobra on the highway.
Good job.
Nathan
Houston, Texas