Pictures of the exhaust system, Dart 67

The 67 Plymouth FSM shows the routing.
Muffler hanger is from the bracket behind the rear seat. there is only one on most cars. IIRC 383 cars only got a dual exhaust.
Those get a bolt on version of the same bracket.
The tailpipes hang from the frame rail. 67 hung directly below the rail. The tail hanger uses a clip in female reciever for the bolt.
Accurate has some of the parts correct but IIRC not the tailpipe hangers.
TTI has the tailpipe hangers but moves the muffler hangers so theirs are not correct.
Don's Custom Exhaust in Ohio prob has all the correct hangers and parts.