Hello club Lexus dwellers, my name is pat and I'm new to this site, I've been lurking for some time now just searching thru info about said lexus im looking to purchase and there was one question i could not find my answer to.
So ill start off with this, my goal is to build a AWD IS250 to be a nice reliable daily and occasional track laps/ spirited drives. I live in upstate NY so the AWD makes the most sense for me which brings me to the main pressing question....

Can I put a BRZ/FRS diff in a 2nd gen is250, ik physically it will fit in the stock is250 diff carrier but will i run into issues with the 4.10 front diff if i put a 4.11 in the rear, just looking for some insight potentially from someone's whos done it or played with the same idea or just knows more.