Differences in a 72 4wd and 2wd rear end

[leddzepp]

Is there any difference between a 72 rear end from a 2wd truck and a 4wd truck, other than 2wd being coil sprung and the 4wd being leaf sprung? I am looking at buying a rear end from a 72 4wd truck to swap into my 72 2wd truck. I know the 4wd has six lugs, but I am thinking I can swap my 5 lug axles into it because they should be the same length. If so, how hard is it to convert from leaf spring to coil spring perches? Thanks in advance.