[Tom Goldman]

On Mopars ,AMC's and Fords It is somewhat easier to do it with two separate tubes to the shock tower ,although I have not had any issues with doing it the way you are describing. .....I've done a few AMC'S that way.
The fragility of A body Mopar's in particular is one reason the change was made to allow the front bars , although more for the protection of the driver .
I've had to straighten a few frames on cars that were bent from wheelstands before doing a new cage and front bars