Chrysler would most likely cast a housing with the right mount for the shifter. If it was a limited run they would have probably used a stamping.

The fabricated bracket is either homebuilt by a guy with really good fabricating skills, or by a shop producing kits for the "bolt-on" modification. There is way too much welding and fitting for that to have been made by Chrysler. Plus, the welding is too good!

R.