A833 (1970) Which Hurst Mechanism do I need for my 68 Barracuda?

Hi guys,

I’m in the process of switching from automatic to 4 speed. I have an A833 (1970) and am looking for the correct Hurst Shifter Mechanism along with the rods and linkage.

1968 Barracuda with a 340

I’ve attached images of the casting numbers on the trans, if you need more info let me know. Thanks in advance.