8.8 Ford on GM A body....

[csouth]

I haven't been here in a while, but finally getting some funds to get back into my project. So now I want to address the rear end. I'm wondering has anyone used a Ford 8.8 on a GM A body car, mine being 72 Olds? I hear they can be strong enough for my application and cheaper to build than a 9". The PO of my car put an O 12 bolt from a 1969 and posi units are difficult to find. I see 8.8 from a Fox body Mustang is 56.5" from backing plate to backing plate, so I was told this would be a good choice. Any thoughts on how involved it might be? I'm assuming would need new perches and shock mounts to go with the GM lug axles?