If you check my previous posts on this subject, sorry I don't have pictures, I have explained what I am currently doing to upgrade from manual drums to manual 4 piston Kelsey-Hayes style disc and now to power discs with a remanufactured original booster. My car is a 4 speed by the way, but I think there is no difference in pin position. The so called aftermarket direct fit boosters DO NOT FIT with shock tower braces. I know, I tried that option first. The pedal pin position is 2" lower than the manual pin position. I actually did a mock-up with the booster and pedal bracket to get the exact location. I was also changing the clutch pedal bushing to bearings and that is why the bracket was removed from the car. I bought my kit from Mustang Steve and I bought the replacement pin as well. This is really meant for a 69-70 and I found I needed to turn off .100" from the back of the shoulder for better push-rod alignment. It looks like this will all go together very well. If you have access to a lathe, you could make your own pin similar the original. Hope this helps.
