Lighter, Bigger and New Big Brake Upgrade kit for the Opel GT or Kadett B with front disk brakes. Kit includes: 4006A Aluminum Calipers, Pair. 4002 Brake Rotors, Pair. 4010 Semi-Metallic Brake Pads 4034 Pad Hardware Install Kit 4044 Brake hose kit, Stainless Steel. 3040 Front Wheel Bearing Seals (2) 12014 10mm Serrated Bit Tool. Note: Modification of brake backing plate required to clear larger caliper. May not work with some wheels with out a wheel spacer.