In increasing fashion, my auto or something with the gears kind of gets stuck.
This is what happens. Say I'm going 60kmh, then slow to turn into a drive, brake a little bit while letting the auto brake for me also, then at 5-10kmh give it some small revs, it feels like the auto gets stuck in 1st or 2nd gear for a moment, until I give it a little more revs, then it frees easily but is immediately followed by a little shunt or knock in the drive shaft, hopefully the uni joints. Because the diff rebuild is only a year old.
I also have a noisy torque converter when in econ at 70-90KMH, which drones up hills, and knocks/drums when going down hills (no load).

Any ideas. Can this wreck my diff?