DB9 Upgraded rear Brakes (updated), when I upgraded my Front Brakes to 410mm Two piece discs and DBS 6 Pot callipers I also upgraded the rears to maintain the braking balance. The stock rear brakes are 330mm diameter single piece discs with a 4 pot Caliper and separate handbrake caliper.
The issue with upgrading the rear brakes is the caliper brackets to fit larger discs, The DBS has 360mm discs with a bracket for the main caliper and different handbrake calipers.
I opted to go for 380mm 2 part discs, this meant modifying the main caliper bracket and creating handbrake brackets.
Originally I welded 10 mm bobbins onto the main caliper and produced the handbrake caliper by grinding 2 10mm thick steel plates to fit and then welding them together but I always wanted to mill them out of aluminium alloy billet which I have now done using CNC.
Main Caliper Bracket
The main caliper is milled from 30mm billet Aluminium, it has a slightly wider web than the original steel bracket to maintain the rigidity of the Caliper.
Handbrake Caliper Bracket
Than handbrake caliper is milled from a 20mm billet of aluminium Alloy
Both Brackets are anodised to prevent corrosion. They are both better fitting and look better and more professional than the original brackets (which did perform perfectly though)
