42RH / A-500 in a Duster with pictures.

interesting thread, I hope that if your using a 3.9 transmission behind a 360 that your going to build it for intended use, the 3.9 tranmission is built with lighter duty clutches and gears and bearly servives life behind a mild 3.9

also I have heard that the OD can fail from lack of fluid if your intended use is mostly 1/4 mile