The Wilwood ST DP6A caliper in the described 1.62/1.38/1.38 setup pairs with a .38" rotor width and uses the DP6A reinforced triple-bridge construction with five bridge bolts. The forged aluminum six-piston differential-bore body and stainless steel pistons with high-temperature seals are specified, and the platform accommodates rotors up to 13" diameter within the listed width parameters.
Wilwood ST DP6 Caliper 1.62/1.38/1.38 .38 Rotor