34-12110 T-Bird Front Caliper, Left for Early Bronco
This is the T-Bird caliper. It fits the 73-79 F-150/BB and the 76-77 EB It looks the same as the stock caliper on the outside but has a larger piston that gives more braking power. They are recommended if you are running large tires. To use this caliper, you will also need different banjo bolts and caliper lines.