Does anybody know the size of the caliper bracket bolts for the front calipers?

[UrS6]

These hold the caliper to the bracket not the bracket to the spindle.

Edit: it's 2003 RS6 I always forget that there's discussion of other models on this board

[Bigglezworth]

http://store.034motorsport.com/bolt-set-brembo-caliper-to-carrier.html?___SID=U

[UrS6]

I need to know the size, length, pitch, etc. I think the head is 11mm hex but the other dimensions are more important to me

[Bigglezworth]

M10. Length shown.

16516

[UrS6]

Doing a brake upgrade


M10. Length shown.

16516

[UrS6]

I actually need about 85mm length. Would everyone agree that this looks like an M10 x 1.5 x 73? I though it was finer but it looks like 17 threads per inch

25.4/17= 1.50 pitch?

I need to add about 12.5mm to it so 85MM.


Doing a brake upgrade

[Bigglezworth]

According to the 034 Motorsports link I posted above, they are 12X1.5X70mm socket head cap screw. It's a 10mm allenhead.

[UrS6]

Ah, I didn't see your edit. I'm being lazy. I'll just pull my bolt and double check. That is probably the right size and I wanted to order longer ones before I tear it down. I am installing C6 RS6 390mm wave rotors.


According to the 034 Motorsports link I posted above, they are 12X1.5X70mm socket head cap screw. It's a 10mm allenhead.

[urs6ville]

Ok, quick question... are the bolts for the front caliper->brackets shouldered?

The ones on 034 site are:

http://store.034motorsport.com/bolt-set-brembo-caliper-to-carrier.html?___SID=U

But the picture earlier in this post are not.

I got shouldered bolts (And assume that is correct based on past brembos) and am doing rotors/pads front and back on Friday in the garage... but not if I have the wrong f'ing bolts! ;)

[P1054]

I can't remember for sure if mine are, but it shouldn't matter if you use shouldered bolts, assuming you have enough threads. And looking at the 034 picture is say you do.

if I were to guess from memory, I'd say mine are shouldered, but don't quote me on it.

[UrS6]

Mine are shouldered. I also got longer Porsche bolts for a 390mm rotor upgrade and those are shouldered too.

[urs6ville]

thanks guys. brake job all the way around this Friday... anyone need pics of anything that would be exposed with the wheels off while I am in there? Seems like the forum has it covered, but thought i would ask.

[Bigglezworth]

After market are likely always shouldered while the OEM units aren't.

16625

[UrS6]

If you need front rotors Dan I have a pair for sale I can drop off. I assume you already got yours tho.

[urs6ville]

If you need front rotors Dan I have a pair for sale I can drop off. I assume you already got yours tho.

Thanks for the offer... yea, got Zimmermanns for front, and had rears already. EBC yellows in front, OEM pads in rear.

[urs6ville]

After market are likely always shouldered while the OEM units aren't.

thanks for comfirming

[RSoverAll]

These bolts need replacing during a pad and rotor job?

[Bigglezworth]

These bolts need replacing during a pad and rotor job?No. A good clean of the threads and they are good to go.

[Other_Erik]

These bolts need replacing during a pad and rotor job?

If you're upsizing your rotors and calipers, yes. Otherwise a good cleanup will suffice.

[urs6ville]

These bolts need replacing during a pad and rotor job?

Bentley says to replace, and for $14/pair (ended up getting them at Fastenal), figured there was no reason not to. Plus, I have no idea how many times the ones in it had been reused as the car is new to me.

Looks like if you pull the caliper pins on top, you could remove pads and get the rotor out that way too.... given the rotor profile it looked like it would work that way, though I didn't prove that out as I took the caliper off and just pulled the pads out, cleaned, reloaded, swapped rotors and reinstalled.

All went smoothly, new pads and rotors all the way around. Went with Zimmermann up front, OEM in rear (could not find Zimmermann rears in stock anywhere). EBC yellow pads.

[RSoverAll]

Fastenal ftw. I'll probably leave them and pull the caliper the traditional way.

I'm sure a brake job is imminent as I'm getting a loud metal on metal screeching sound w/ no brake application... I can only assume a rivet has made it to the rotor causing the sound.