Motorhome 727 trans in an A-body?

If it has a bolt on driveshaft it won't work as is. You'll at least have to swap the output shaft and extension housing which requires complete disassembly of the transmission cause the output shaft comes out through the front. If you go that route you'll need an output shaft from a 76 or newer 727 to match up to the splines of the front planetary gearset.