If you read Mavdog71's posts, the set up he bought will bolt right in behind the shock tower. Only mod needed is opening the center hole about 1/8" diameter.
That makes sense, but what vehicle is the spacer from?Also, wouldn't the brake pedal push the rod into the booster at an angle even with the power disc pedal and ruin my booster? Do you have any pictures of your power disc brake set up? Any more info would really be appreciated. Thanks again, Rick