Quick Question: Subframe connectors- WHY didn't they do this from the factory?

While near 99.5% of the A-Body Uni-Body cars got the typical 'Union Label' weld job,

There were a few 'select cars' that got the 'special treatment'.

Additional welds, and in some cases 'hidden' cross-braces inside the frame.

See > Jere Stahl's 1966 Valiant 2-Door Sedan 273 Commando
See > The Golden Commando's 1965 'Goldfish'
See > Dave Patterson's 'Brand-X' 1965 Barracuda
See > Ron Root's 1965 Dodge Dart GT
See > Charlie Allen's 1966 Dodge Dart GT {D/Dart}

Not sure who these guys are but cool. There were folks that took pride in their work. My dad always said that whether the job is big or small, do both to the best of your ability.

My duster..and I know because we took it all apart..was not one of them :(

Or was this special ordered ?