[Captainfab]

The booster and master assembly you show in that picture, will bolt right up to your firewall since it is an original replacement assembly. No additional bracket is needed. My booster brackets are typically used with nonstock boosters to get everything closer to the firewall. Additionally, my booster brackets are not compatible with a column shifted auto trans unless the booster is smaller than about 10" in diameter. If you do want to eliminate the factory brackets and get everything closer to the firewall, the booster mounting holes will have to be elongated if that is an original style '71-'72 booster.