Learn the purpose of the lower caliper guide pin sleeve Many late-model vehicles have different top and bottom caliper guide pins. The lower guide pin has a groove that holds a rubber caliper pin sleeve. The caliper guide pin sleeves can be either long or short, depending on the carmakers’ preferences. The sleeve is designed to reduce vibration and chatter during braking. How the sleeves work to reduce vibration and noise Some people call caliper pins “slide pins.” But their real name is guide pins because their job is to … Read More

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