We have a used Wilwood NDL Dynalite Brake Caliper 120-6511. The piston size is 1.750". It is for use with a 3/8" thick brake rotor.The bolt mounting pattern is 3.500" center to center.You might be able to use this.
WILWOOD NARROW DYNALITE BRAKE CALIPERS & PADS,NDL,FOR .81" DISCS,1.75" PISTONS
NEW WILWOOD NARROW DYNALITE BRAKE CALIPER,NDL,1.25,1.38
Wilwood NDP Billet Dynalite 4 Piston Brake Caliper 120-9737 Sprint Car Midget
NEW WILWOOD FORGED DYNALITE-M BRAKE CALIPER,FDL-M,4 PISTON,1" ROTORS,1.75",GRAY
WILWOOD FORGED DYNALITE-M BRAKE CALIPERS & PADS,1" DISCS,1.75",GRAY 4 PISTON
NEW WILWOOD FORGED DYNALITE-M BRAKE CALIPER,FDL-M,4 PISTON,1" ROTORS,1.75",RED
