Since the TH350 predates the 4th Gen Fbody by about 30 years, the TH350 doesn't have a provision for the 4th Gens Torque Arm front mount. B&M stepped up to the plate and designed a bolt on apparatus to allow me (and anyone with a 3rd Gen or 4th Gen) to bolt in a TH350 and hook up their stock positioned torque arm. I will mention that for whatever reason, the torque arm bushing that you'll take off your stock mount, is oriented upside down relative to the stock orientation.
Here's a few pictures of both the box(and it's part number) and the device itself.
Here it is, actually on the tailshaft of the TH350.
