What transmission in 1984 Chevrolet Scottsdale

[expo420]

Good Day:

I am about to sink my life savings into a beautiful 1984 Chevrolet Scottsdale shortbox 2WD. My question......(cause its hard to get a straight answer on web)......what automatic transmissions were offered for this year? The guy tells me it is a 3 Speed automatic.....but I always thought they had Overdrive in 84 which would make it a 4 speed.

Any help would mean the world to me. I know someone out there can help me!!! Thanks soooo much!!

Gary!