OD or Non OD 833 behind a slant 6?

I get what you mean by the od and final gearing. That’s why I have 4.88’s behind my t56 in my duster. I’m not trying to spend a grand plus changing out the rear just for gearing. I literally have everything to put either trans in the car so I’ll have nothing in it. Just trying to add the 4 speed fun to this car with what I have but wanted to make sure it was going to work before spent the time swapping everything.