THIS INCLUDES ALL THE SEALS AND HARD PARTS NEEDED TO REFRESH / REBUILD YOUR DISC BRAKE CALIPER. REBUILD KITS ARE SOLD EACH, ONE KIT DOES ONE CALIPER, SO ORDER 2 IF YOUR REBUILDING BOTH! AT THE END OF THE TYPE 3 MODEL PRODUCTION, VW UPDATED THE FRONT DISC BRAKES TO THE LARGEST VERSION OUR AIR-COOLED SEEN.