74 to 70 Dart parts swap
This is a no brainer. Swap the K frame to the 74. If the 74 has a factory sway bar, you will want the lower control arms as well.
This would be a great time to swap the the thing JUST LIKE the factory did........drop all of it. .........K frame and engine trans.....out the bottom
Google "Mopar engine dolly"
mopar engine dolly - Google Search:
Mopar K-Frame Stand Drivetrain Restoration Tool