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C Clamp And Brake Piston

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Before bolting the caliper back onto the truck you need to reset the pistons, as over time they have adjusted to the worn-out old pads and now need room to fit the new EBC pads. Our favorite trick for resetting pistons is to use a medium-sized C-clamp and one of the old brake pads. With the C-clamp centered on the pad, tighten it down until the pistons are fully seated in their bore.