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These anti-squeal "spiders" are a clever way to keep the pad from moving around in the caliper which is key to eliminating brake squeal. The only way I can see to create the needed clearance for removing the pads/spiders as one unit would be to pull the caliper from the rotor. Porsche recommends replacing the spiders when changing pads, however with a little brake cleaner and some high temp adhesive they can be reused. Given the choice I'd rather reuse the spiders than spring for new caliper mounting bolts.
Interestingly, many 993 owners (myself included) have have experienced little or no squeal when tossing the spiders altogether at thier first pad change. Not sure if doing so with the 6 pot calipers on the GT3 would have the same results.
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'96 Coupe - Arena Red
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