Disregarding the fitting in beams issue, Can you just stick a 2wd diff onto a 4x4 car, as the ratios are identical at 3.62:1 are they not? , what else would have to be changed? Shafts and stb shafts and rear prop section?

Just wondering if it is worth going 7.5" on the back of my escort as there seems to be more choice for upgrades, or are there decent upgrades around for the 7" jobbie?? Was thinking of a ZF plated or gripper