Wilwood 140-14531 KIT FRONT PINTO/MUSTANG II 74-78 DP6Wilwood 140 14531 KIT FRONT PINTO MUSTANG II 74 78 DP6 DynaPro 6 forged billet calipers are combined with 12. 19 diameter rotors for this group of traditional non ABS spindles on American muscle cars and vintage rods. The enhanced brake capacity and pad performance of the six piston calipers provide an intermediate level alternative to the bigger six piston kits. These kits are specially designed for 5 x 5. 00" bolt circle wheels. DynaPro 6 kits