Some pads must be made of different materials or made differently then.

Which pads don't squeal?

Squeal is pad vibration. It rarely has much to do with the compound of the friction material, but more frequently caused by poorly made (or worn) backing plates that don't fit snugly in the caliper. Any thing you can do to change the vibration threshold will reduce the squeal.

When i did brakes on my Z they squeeled like crazy! I skimmed rotors and new pads. I used 'brake anti squeel spray' and 'coppercoat' as if it were a customers car. I then asked my boss about it, a brake specialest for 20+ years, and he said i need shims.

He ordered me in some almost fabric shims. They are of 3M brand and are just self adhesive pads you put between pison->pad / caliper->pad.

Worked exelent! It will occasionally squeel white monovering but 10000x better then before!

Well, the factory shims don't ever squeal, at least mine never have and they're only about two bucks each.

I just noticed that BD has the shims for the S30, but not the springs & other misc hardware.

  datto_240z said:

When i did brakes on my Z they squeeled like crazy! I skimmed rotors and new pads. I used 'brake anti squeel spray' and 'coppercoat' as if it were a customers car. I then asked my boss about it, a brake specialest for 20+ years, and he said i need shims.

He ordered me in some almost fabric shims. They are of 3M brand and are just self adhesive pads you put between pison->pad / caliper->pad.

Worked exelent! It will occasionally squeel white monovering but 10000x better then before!

Sounds ,like the best solution I have ever heard. No springs or retainers I gather.

Any more info on this, such as part number etc?