Your third will drop in to your new housing. IIRC the axle tube is 3in in diameter versus 2 5/8th in??? so measure and if anything make sure to grab the u bolts/square bolts and plates
Ive kinda poked my head in threads about using IFS hub/knuckles on a SA to gain trac width... Something that you might look into rather then using spacers in the front.
