Can anyone tell me if there is anything I need to know about what will fit when looking for a transfer case for a 1990 Bronco II? Is there a difference between the T-Case for an auto and manual trans and/or any ID numbers that must match up for it to be a drop in fit?

 

Need to find out if I can replace a 1350 case with a 1354, both with electronic shift and both out of a 1990 Bronco II.

 

I'm pretty sure the 13-50 and 13-54 are essentially interchangeable.