Custom Cruiser Wagon
 

I have a 1989 Custom Cruiser Wagon about to do a transmission on. I believe it's a TH200 transmission. I've been searching some junk yard database sites and found a few in my area, just have to try to figure out one detail.

They give an option for either with or without a multi fit case when searching for the transmission. I really don't know what this means -

How would find out which one I need (i.e. would it be designated somewhere in the VIN, or would I be able to visually identify by looking at the transmission that's coming out of the car)? Any help/advice would be much appreciated, thank you