Dana 70 vs 14 bolt coporate
 

Background: I have a 84 GMC c3500 with dana 70 dually rear end with 4:10 gears, I am looking to swap to something with better highway gear. I found a single rear wheel 14 bolt corporate rear end with 3:42's. Does anyone know if I could swap my dual rear wheel parts to it? Or what is needed to go to dual rear wheel?