AWD to 2WD conversion help needed

I have a o1a trans that is AWD. I'd like to know how I convert it to put 100% the power through the front outputs only. I have removed the rear differential and machined a block off plate. Do I need to modify the front differential or anything else?
Before someone tells me its a junk transmission lol, I am heat treating the mainshaft and doing the cryo treatment to all of the internals.
 
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