Think I have FINALLY pinned down a new rear

Well after months of searching I think that I have finally found a rear end for my Franken Olds that will work! I was contacted by a local guy that has a 12 bolt rear out of a '68 Buick Skylark that should fit up. He is asking $150 it is a non posi but that can always be added later (my uncle may actually have one for a 12 bolt around somewhere).

If I understand fitting one of these rears should be fairly straight forward, stock lower arms with adjustable upper arms is that right? I know it will be a little bit wider than the stock rear (which is fine by me within reason). Anything else I should look for?

I might be getting my engine and trans "gifted" to me for Christmas so things should be coming together quickly from there on out. The engine should be pushing out between 300 and 400 hp once I'm done and a 4spd trans is going in so the stock 7.5 would have never survived.

Good to know. I will have a bit of research to do but at least I know its a rear that has been put in before. Also nice to know it will be able to handle what I plan on power wise. He will be contacting me tonight with a width measurement.

Shotgun is there a particular set of conversion arms that I should get that are better than others?

I was planning on running 15x8 wheels on all 4 corners. So from what you are saying with this rear and that size wheel I would still need to find some 5 inch back space wheels? I'm not planning on going overly huge on the tires either wanted to try and get the same size rubber on all 4 corners.