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the slide pins are what connect the calipers to the carriers, the caliper slides along the guide pins to tolerate imperfections in the disc and to prevent un-necessary contact between the pad and disc during suspension movement and cornering. think of it that the when the pads come into contact with the disc when the brake pedal is not pressed, the capliper simply slides out of the way and doesnt put any force on the disc or slow the car down.

when the brake pedal is pressed the piston on the inside comes out and presses the inside pad onto the disc and at the same time pulls the outside pad onto the disc
 

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Discussion Starter · #5 ·
all sorted, i had a idea but wasnt 100% sure

basically the threads in the carrier for the pins had gone so i had to retap the holes then make some more sliders...

wish i had took a pic of them, its hard to tell the difference between the new and old ones lol except my new ones i used a posi drive head instead of a allen key head
 
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