John McM

Last weekend, I heard a noise similar to a stone caught in the right rear disc brake, so I decided to take off the wheel and check the brake pad thickness. For good measure I also checked the front pads.

Based on Adrian Streather's book Pg. 270, both sets look ok with more than 2.5mm of meat left in each pad; however, there is such a difference between the front and back, especially with regards to the closeness of the sensor to the disc surface I'd like a second or third opinion.

The first picture is the front pads, and the second is the rear pads. To give scale to the dimensions, the wire that holds them in is 3.5mm thick.

So do the rears need replacing?

If they do, should I use the same pad? Rears are Textar T428 FF 20877 (43P), fronts are Textar T4045 FF 21402 (43P)

38D

That is tons of pad left. I have literally run my pads downs to the backing plate at the track (not that I would recommend it...).

cobalt

I agree with 38D. The only time you may think about replaceing them when they are at this point is if you plan on letting the car sit for long periods of time. Long term storage with worn pads can lead to corrosion of the pistons. The exposed surface that is normally pressed into the caliper that is now exposed (although under the protective boot) used to break down and rust on the pistons when left for months at a time without use. This was a big problem with the earlier S calipers and I was told can occur on the newer calipers also.

John McM

Thanks guys. The noise stopped as quickly as it started, so I'm guessing that it was a stone caught in the guard behind the disc.

FWIW: This was my first....and last use of the Porsche supplied jack, what a P.O.S.