Front rattle mechanic says all is good.

[CoryM]

The rubber rings swell and, at a certain point, will not go in. Time to remove or replace them. Can buy boot kits with the rings for fairly cheap. Pins need to move freely, so make sure they stay lubed. Stuck pins will wear your pads out quickly.

FYI, generally worn pins/pads are from driving with rotors with high runout. Caliper/pads slide back and forth rapidly anytime you brake.

[06YarisRS]

Originally Posted by CoryM

The rubber rings swell and, at a certain point, will not go in. Time to remove or replace them. Can buy boot kits with the rings for fairly cheap. Pins need to move freely, so make sure they stay lubed. Stuck pins will wear your pads out quickly.

FYI, generally worn pins/pads are from driving with rotors with high runout. Caliper/pads slide back and forth rapidly anytime you brake.

Yes, I was referring to new ones. I bought a boot kit and new caliper pins from Carquest locally. The new pins would not go in without destroying the rings. And the old rings that came out were basically disintegrated. I worked long and hard at seating the new boots into the channel in the caliper bracket and lubed the rings well. Still no joy. The only way I could get the pins to go in was to tap them with a hammer. I'm thinking that despite my efforts, I couldn't get the boots installed properly in the bracket and the hole simply wasn't large enough to accommodate the pin and ring.

[Pinchlite]

The only way I could get the pins to go in was to tap them with a hammer.

Are they proper pins?

Mine with new O rings slid in easily.

[06YarisRS]

Originally Posted by Pinchlite

The only way I could get the pins to go in was to tap them with a hammer.

Are they proper pins?

Mine with new O rings slid in easily.

They looked identical in shape and size. I didn't cross reference the number but did ask for the correct ones at Carquest. I did replace the pins on my 08 some time back and did not experience difficulty. I wonder if it's possible that the boot rubber material was thicker on the aftermarket boot kit I bought. My feeling is that I didn't manage to get the channels of the bracket cleaned out well enough so the boot didn't properly seat.

Oh, and once this most recent set of pins were in, they did slide easily.