34-12120 T-Bird Front Caliper, right 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 out side 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.