Change 1-2 gears to lower ration gears 1967 Dart Automatic (904?)

65Vsignet said
The low gear set came in later transmissions like a 998/999, and you will need to get deep into the trans to do it.

I was told there are gears that are a direct swap, am I misinformed?

Anyone know if there is a kit or a list of the correct parts?

70aarcuda said
you will need to remove the front pump...the two clutch pacs . Then you will see what is called the drivetrain portion of the trans...that is where you change out the gear ratio....not hard...just make sure you have all the pieces that go tomorrow with the lower gear set.

Sounds like it might be a job for a trans shop. Although I would love to rebuild a trans someday.
I'm adventurous just don't want to brick it.