1968 to 1976 non lockup style. Only two converters available in ANY Chrysler vehicle with a 225 or a 318 Engine.
One being a low stall, identified by triangular decal applied at the factory. Says LO STALL. Stall speed around 2000 rpm.
The other being a higher stall, identified by an egg shaped decal, again factory applied that says HIGH STALL. Approximately 23/2400 stall.
Dealing with A.Z. and the like may be fine for spark plugs etc. , but their staffs' knowledge on automatic transmissions is extremely limited.
If it fits a Dart, it'll fit any 68-76 904 period, with either the leaning tower of power or the 318.
This is the reason I'd avoid A.Z. and the like. Staff in these places have minimal experience with converters and automatic transmission.
Google Transtar and see if they have a warehouse near you and buy from them. Or go to one of the numerous converter builders websites that have been mentioned on this board and go directly to them.
It would be interesting to know the part number they sold you from their supplier. Does it say CR 7 on either the box or converter? I just looked at their catalog and what a load of mis-infomation.
