Is reducing the piston area on the front calipers acceptable for performance driving? Or, is more piston area better? As for the rear calipers, the S10 units have 2.80 sq. in. of area (48mm single piston) and assuming a 65/35 percent front to rear balance, then I would need a rear caliper with approx. 3.6 sq. in of piston area to balance, if I keep the D52's on the front. A mid 90's caprice with rear discs used a PBR single piston 54mm caliper. The rotor width and diameter were the same as the S10. Do you know if the caliper will bolt up to the S10 bracket?
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