98+ brake upgrade?'s

[ssms5411]

I need to know what size bolts I need to get to mount my 98+ brake upgrade on my
96' Camaro, I have the rotors, calipiers, spindles and brake pads just need what size the 2 bolts on each calipier. Thanks

[FirebirdGT]

Re: 98+ brake upgrade?'s

The bolts that bolt the PAB to the spindle?
.

[ssms5411]

Re: 98+ brake upgrade?'s

The bolts that bolt the PAB to the spindle?
.

Yes, I didn't get any when I got the brakes so I have no clue on what size bolts to use to mount the calipiers to the spindle.
You wouldn't have your old bolts from yours would you Robert? Unless they were used on your C5 brakes.

[FirebirdGT]

Re: 98+ brake upgrade?'s

I replaced only the calipers, not the PAB, which is still the 98+ F-body. I would get the GM factory bolts - nothing else.


98+ Pad/Caliper Bracket Bolt (GM p/n 18023646) - 2 required per bracket

.

[ssms5411]

Re: 98+ brake upgrade?'s

Thanks for the info, Robert

[ssms5411]

Re: 98+ brake upgrade?'s

I just ordered them, $25 damm GM parts direct , you could only order them in quanity of 5 and shipping was the same as the bolts, but oh well I need them.

[Slowside]

Re: 98+ brake upgrade?'s

lol I used bolts from the hardware store. They do the trick fine. Grade 8.

[ssms5411]

Re: 98+ brake upgrade?'s

lol I used bolts from the hardware store. They do the trick fine. Grade 8.

If I knew the size I would of got them , but I think their 10.9 grade. I took back some bolts I thought would work but didn't so I got $10 back.

[FirebirdGT]

Re: 98+ brake upgrade?'s

Thread size does NOT define a proper bolt - it's the grade - paticularly in high stress applications.

This was a common problem when I was a Racing Tech Inspector in the SCCA - an unsafe bolt grade in the suspension and/or brakes.

I use ONLY GM parts when it comes to my brake hardware.
.

[ssms5411]

Re: 98+ brake upgrade?'s

Are they 10.9 grade, Robert? I know the tubular K I had to use 10.9 grade bolts. Did you ever get your tubular K installed Robert?

[FirebirdGT]

Re: 98+ brake upgrade?'s

Are they 10.9 grade, Robert? I know the tubular K I had to use 10.9 grade bolts. Did you ever get your tubular K installed Robert?

My technical info doesn't say - just the size, which is a metric bolt - so it's either a Class 8.8 or 10.9. I'll bet it's 10.9.

Assuming that Slowside actually got a Class 8.8 instead of a US Grade 8 (since the required bolt is a metric thread) the Class 8.8 is 32% weaker than the Class 10.9. What is interesting is that a US Grade 8 is only 5% weaker than the Class 10.9.

Now - is that confusing enough?

BTW - did not get the K-member - yet.
.

[ssms5411]

Re: 98+ brake upgrade?'s

Not too confusing , but glad I ordered the bolts so they'll be correct, thanks again.