1970 front suspension

[ce134blu]

Hey every1, I have a few questions for my project/daily driver. I have a '70 GMC 1/2 ton 2wd with 6 lug/front drums and want to convert to 5 lug disc from my '79 2wd. Now I did see the nice bit about the possible swaps, looks good nice work. But is there more detailed info for the swap as far as locating the cross member from the '79 onto the '70 frame or is it just a direct bolt in with exsisting holes, etc.

Another question, will it make a difference if using 2" lowering spring/shocks for '73-87 2wd with the cross member from the '70?

I have never done this before, so I'm triing 2 have everything possible lined up so that when I do park the '70 it will only be down for a short while. True I won't be able to have everything accounted for but any more info you guys can give me will help and be appreciated.