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  1. GT (1963-1977)
    1966 105.36 Sprint GT Veloce Standing Pedal Single Circuit Braking System Vacuum Servo Booster What is the best fix or replacement for a Bonaldi 7/8" master cylinder that's leaking fluid into the rubber boot and onto my garage floor? Try a different brake fluid brand or DOT type? Buy a seal...
  2. GT (1963-1977)
    Hi, in my car, a '72 GT 1300 Junior, i found a Bonaldi Brake System. Both the brake booster and the MC, like the brake fluid reservoir, are Bonaldi branded. The booster is gold plated, not black like the other that i saw on the internet and the reservoir shape is also different. Are these type...
  3. Suspension, Steering, Brakes, Wheels & Tires
    Hi Guys Has anybody ever replaced their brake boosters with a generic aftermarket booster. I only ask as the ones in my 1970,RHD, standing pedals, 1750 GTV have well and truly given up. I have Bonaldi boosters and they are beyond salvaging. I am aware that I can get replacements however the...
  4. Alfa Romeo Parts For Sale & Wanted
    For sale: Original Giulia 1600 Super front brake set, standing pedal version Set consists of: 2x ATE 2-pot front brake calipers On the one calipers it says ATE R38 (I think, outer side) / ... (can't read it, inner side) and on the other caliper is says ATE 173 (outer side) / 24 (inner side)...
  5. GT (1963-1977)
    My 66 Sprint GT Veloce came with a Bonaldi brake booster. After some forum research, I learned the rebuild kit has a pretty low success rate because of the wear on the tip of the rod that runs the length of the unit. Evidently it's a hardened rod and mine is showing signs of wear. Of course...
  6. Suspension, Steering, Brakes, Wheels & Tires
    I am encountering a strange problem with the brakes on my 69 spider. This car originally came with an ATE double master cylinder and 2 bonaldi in line boosters. Some time ago, I had this changed to a bonaldi single master (because the ATE was out of production). I also got a new in line...
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