[V8] UFO brake pads

[Kneale Brownson]

As Bernie would say, the system makes an automatic pad warning noise 
when you're down to the backing plate so you know it's time to replace 
the pads.  Sounds like yours have thousands of miles of service left.

The growl may be from something stuck to the rotors.

On 11/20/2011 10:12 PM, toml99 at todomundo.com wrote:
> So, I got a chance to pull the wheels off today, and the rotors look 
> smooth.  I re-verified the mileage, and the pads and rotors only have 
> 30K on them.  I measured the pads, and therein lies the question.  The 
> book says "pad thickness new 12mm/max wear 2mm....then says "when 
> brake pad thickness,including backing plate is 7mm, pads should be 
> replaced".
>
> [I take that to mean that the friction "pad" part is 12mm thick new, 
> and can wear down to 2mm?]
>
>   I measured all of them(front) and the pad thickness was 
> 7.8/6.7....6.3/7.6(left to right).  Then it says..."when pad thickness 
> including backing plate is 7mm...replace"......Mine were 
> 12.4/11.2...10.8/11.2.  Since I just recently bought my first real 
> caliper when I did the timing belt, this is the first time in my life 
> I think that I've ever actually measured a brake pad.  I saw nothing 
> obvious that would make that nasty growl like rivets wearing thru the 
> pads and grinding on the rotors....The wires were all replaced with 
> the rotors/pads, and there's no brake light happening.  Noise only 
> happens when pressing harder on the brakes and coming to a slow stop.  
> Everything looks pretty happy to me, just wanted to make sure I was 
> interpreting the book correctly/make sure the now rare rotors weren't 
> getting trashed.  Maybe there's a bit of something stuck under one of 
> the pads?....Regardless, I'll probably get a set of pads(or 3) while 
> I'm thinking about it and before they get rare also....Still stop 
> quick and smooth......Sincerely, Tom
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