Removed vacuum booster to begin comparing it to the hydroboost unit and to see what will need to be done to make it work.
The mounting face to push rod tip distance is critical for getting the pedal to be where it needs to be. The hydroboost unit is about a half inch longer than the vacuume booster.
Another critical distance is the length of the push rod that comes out of the booster and goes into the master cylinder.
The push rod on the vacuume booster is adjustable.
The bolt pattern is square.
And the bolt pattern on the hydroboost unit is not as you can see.
The bolt spacing for the master cylinder to booster connection is the same so it should bolt right together. All I will need to do is get it to bolt up to the firewall at the proper distance from the pedal.
Stay posted for more updates!