70 Duster 5.7 Hemi/46RH

pop the OD off of the 4x4 trans, you'll see the 2 mechanical gov tubes. Additionally, an RH 2WD housing will have only the speedo hole, not the small output speed sensor hole. 4x4s, wont have the speedo, as it is on the tcase.

The RH 2WD case looks like this
Attach07_zpsfryrzwlp.jpg