Hi Guys,

New to the club and wanted to ask about rebuilding the rear brake calipers, so it was my 2nd time changing my rear brakes on my 2016 RX350 and I noticed both dust boots on my pistons were ripped up pretty badly.
I have about 90,000 miles on the car and I would rather replace the seals as the brakes/caliper work just fine. Rather than buy new ones, has anyone ever attempted to replace the seals on these?

 

The procedures should be similar. There is not much trick, but you do need a air compressor to push out the cylinder.
You should replace both the seal inside and the boots.

 

I've watch a variety of videos and the rear calipers come with an EPB which requires the Torx Bit, the best video I've found was for a Audi/VW.
Hopefully I don't run in any problems during this process and was just seeking advice from fellow owners.

 

Good luck and let us know how it goes.

 

Auto parts store have professionally rebuilt calipers for cheap. i would just do that.

if you DIY, careful with pushing the piston out, good way to amputate your finger.

 

Yeap pushing the piston out with compressed air is pretty violent. Put a piece of lumber where the rotor sits to reduce how far the piston will travel, push it out in steps. It goes off like a shut gun if there's nothing there to stop it.

 

I have replaced calipers previously with some remanufactured from Rock Auto....relatively cheap.
I guess the as long as the sides of the pistons are in good shape and not pitted, then the kit is a good option.

As mentioned you need a compressor, but set very low....doesn't take much to normally get them out.

Let us know how it goes.

 

Why are both boots ripped ? I can understand one being ripped ,but both seems extremely odd.