Proportioning valve question for disc brake conversion

You are talking about 67- 69 cars. the 70 -73 a body cars use this valve and it has the pressure failure light switch in the valve you can see where the wire plugs onto it in this picture.

Here is a link for the correct valve it is also used on the a-bodies. I have a bunch of these valves and I took them all from 70-73 a-bodies

MD2271 - 1970-71 Mopar B / E-Body With Front Disc Braked Combination Valve

View attachment 1715931388
The valve you have pictured is the same one I just put on my Valiant with a manual dual reservoir disc brake master cylinder. Although I still have drums all the way around for now, it still stops just fine. I wanted to go ahead and get everything on, since I am getting ready to put the discs on the front. Steve, it always amazes me the level of workmanship yall put into everything. That looks better than new.