Vibration in front

[Racer57]

70 Cuda

60+ mph I have a vibration in the front that increases the faster I go. At 80mph, the hood shakes.  Same as a tire out of balance. But, tires are new with small amount of weights and were rebalanced to double check and still required same weights. Wheels show as being true. The rubber grommets in front have also been replaced. No change whether in gear or not. Could a bad ball joint cause the problem ?

[moreparts]

Did the problem start happening at the same time the wheels were put on?  I'd probably start by doing a front to rear rotation and seeing if the problem move to the rear in my troubleshooting.

[Racer57]

Wheels have been on for 10 years. Problem started slowly over past 6+ months.