Need Help

Just my two cents, But I think you are right the Dana is a direct bolt in. As for the driveshaft, check the input shaft spline count butif I'm not mistaken they are the same. I know that the driveshaft for an A833 and 727 are the same(At least for an E-Body). But if the spline count is the same on the input shaft it will fit because overall the Smallblock 727 and the Bigblock 727 dimensionally are the same, so the length would be right.