Autozone gave it to me it is a little package of brake lubricant, it is kind of like a ketchup packet. You remove the (2) 13mm bolts holding the caliper on and remove the caliper the pins are what the bolts screw into.
Dont take out the the bigger 15mm bolts holding the brake system to the knuckle.
There is a rubber boot that the pin slides into but it is not sealed, just pull the pin out.
Take a look at this picture, these are the pins, and boots I am refering to.
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