904 to 727 upgrade.

Using the 727 is fine. I used one in my dart sport 360. Cuz it was behind the 360 out if a 75 chrysler cordoba. Rebuilt it with 4 or 5 clutch front drum 4 planetary front and rear. T/A prostreet valve body, 3.8 kickdown lever and a 9.5" FTI 3400-3600 stall converter. Shift like a dream and the 3.91's out back make up for the 2.45 1st gear!:steering: