Can you ID this Mopar gearbox?

Meanwhile, I found the answer : the lock-out is operated by a cable in the hollow lever.
But if it's easy to get the cable apart, it also could be very difficult to get it on back (especially if the cable is frayed).
This can be a problem to pass the lever through a shift boot.

I also checked my current bellhousing and it doesn't have the dual pattern mounting holes :(
So, I will have to use the '66 bellhousing which comes with the 833.

François