`67 Brake Booster - HELP!!!!!!!

[MustangSmitty]

My `67 Coupe was an original drum brake car. The previous owner, the guy that bought it from me in 1987, converted to disk brakes.

He retained the OEM master cylinder, and did not add the vacuum booster.

All of the aftermarket suppliers are showing the same booster/cylinder part.

Problem is that the part has a 5 bolt pattern and the car does not have that set up.

I bought what the aftermarket suppliers is saying is the booster for a `67 with disk brakes, but as stated above, the bolt patterns do not match.

Help?

[vin man]

Did you ever solve this problem? I can help if you still need it. I just added booster to my 67 Mustang.