JDM Galant auto transmission? gearing?

I have a friend that just bought a JDM motor/tranny/t-case. The company he bought it from says its out of an 89-91 galant awd automatic. I was going to buy it off of him to eventually use in my 4g mirage. I'm having trouble figuring out what/if any the differences in the gearing? And what rear end I'd have to run in order for it to work. Code on tranny says its a W4A33.

 

AFAIK they are the same gearing. I hope so since that's the transmission I have in my galant now which came out of a running 92 with the stock USDM 4bolt rear.

 

Sounds good to me, I just didn't want to start buying parts then find out later that I have the wrong ones. Thanks appreciate the help, Anthony