SS Dana Axle?

This is typically how Hurst did it on the Cuda. I have tons of pics from ´68-´69. All having this mod. Some a little more, some a little less.
For ´70 NHRA rule book. "Internal wheel-well modifications are allowed, however external fender alternations are not premitted"
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Unfortunately, I see no proof that Hurst did that to as delivered Barracuda’s.