would the rubber sleeves on rear brake caliper sliding pins be necessary? When I installed new rubber sleeves and reinserted the upper sliding pins, it was acting like a piston due to trapped air whic is supposed to bleed out but it did not and that caused the calliper to bind so I had to insert the sliding pins without the rubber sleeves, though I added fresh silicon grease and replaced the old dust boots. Please advise. Thanks
The boots are necessary to keep water out, if the grease was trapping air you either put too much on or it is wrong for the application.
Boots act as a cleaner for the pins. Had same prob. on an older model Subaru w/this. Bought the proper grease for the sliding pins and had no prob. after that.
tennisshoes and tchrart are confusing the rubber boots that keep dirt out with the rubber sleeves that you are concerned about. Yes , they can be a problem and no, I don't know what they are for.
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