Service manual says it should take 4.
I would jack up the rear and run it for a minute and re-check. I wouldn't want to put a load on the trans knowing it's almost a quart down from where it was.
Thanks Man! Yeah, I jacked it up on one side and got the rest in there.
It runs thru the Gears just fine up on Jackstands.
Raining today... I'll take it out tomorrow. Fingers X'd.