That's not an 8.8, it's a Dana 35HP, and it's a tuff little diff. in the front, but with it being an HP diff. I'm not sure how well it would hold up in the rear.
U can find 'em in the rear of somthing, Corvets I think, but not sure on that. I might be wrong, but I think the R200 would be a better, and eazyer choise. And U can get an air locker for 'em 2.