Isn't there also a brace that also goes from somewhere on this bracket or the booster to the inner fender? I remember taking one off one time. I'm not sure how necessary it is or whether all power brake cars had the brace. Come to think of it, I seem to recall there was also one going down to the lower firewall below the brake booster and bracket on the setup I took off.
Dallas
P.S. sorry I don't have a pic or any parts anymore but it's great that so many were able to help a member in need.