Saginaw 4 how drain old oil????

Hello I am use to automatics, I found fill plug in side of saginaw but can or dont see a bottom plug to drain out old and refill with new 90. Give me a pointer please car is skyhawk 4 saginaw, thanks

 

no drain plug, then u will have to pump out the old lube.

 

On most saginaws the bottom bolt that holds the extension housing on is drilled through. Remove that bolt and the oil should come out.
Goos luck.
Brent