I need help! Info for 1972 Valiant sedan

oooo ok thank you man!

Easy to tell if it's an A904. Crawl under it and look at the pan. If it's a square pan with one of the corners knocked odd, it's an A904. If it's a square pan with a corner knocked off AND a kickout at the passenger's side front corner, it's an A727. It would have to be sorta a special order like a taxi or some other fleet car to be an A727.....OR someone swapped it out in the past. I feel sure it's the A904.