Hey All,
I have three JFZ calipers with twin 1.75" pistons in each caliper that I have completely gone through. These are significantly stiffer than the Wilwood Dynalites and work very well for our weight and size cars. These are outfitted with vented and ceramic coated pistons, new seals, new crossover tubes, and new bleeder assemblies. I also have three new sets of brake pads, new seals (I will throw in 4 non sierra seals as well), new pad retainer pins and a spare piston. See below. Package is $125+shipping.
Huskamp