randall -
when you rebuild the calipers, soak the EPDM (inner) seals in brake fluid for 30min prior to reassembly. after you remove the pistons, clean everything out with denatured alcohol & let it dry for several hours. then blow them out w/ compressed air prior to reassembly. i think i posted a DIY on the boxster racing board or even on this board somewhere. glad you found the zeckhausen link useful; they're the only people i've found who offer a reasonable deal on this stuff.
i'd found two other suppliers, but they were wanting upwards of $25 PER SEAL for the inners. i tried to have a bunch made last year but couldn't meet their minimum quantity requirement. in bulk (100+) they get pretty cheap.
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