MYRX

I am in the process of changing my front rotors, (no big deal I am thinking). Everything went ok. Then I go to the service manual to learn the torque spec's for the bracket bolts, (125 pounds!) and I see that they suggest/instruct never to reuse the caliper bracket bolts.

So I am thinking, I see guys replacing rotors all day at the track. I don't recall seeing these bolts replaced. Am I missing something? Are these TTY bolts that get too stressed when repeadily torqued to 125 pounds? How many of you actually replace these bolts. Calling the GM parts department, they are approx $ 5.00 each.

Looking for advice/opinions/feedback.

John Shiels

I personally have reused them for years. GM has a loctite of some form on their bolts and that is why they like new ones to go on.

gkmccready

They're not torque to yield. I re-use them all the time. So much happier not to need to remove them after going to a radial mount caliper, though.

RDnomorecobra

you do want to clean the old loctite off and apply fresh before reinstalling though

kmagvette

I have reused mine for years...get a die to clean the threads on both the caliper and bracket bolts...makes things easier especially if you are a fan of red locktite.

waddisme

$$ wise is is cheaper for shop to repl than take an hour cleaning 4 bolts. I had mine off 20 times last year alone. Just clean them good.

MYRX

Thanks, that is what I was thinking, just wasn't sure about them being TTY. I have a die, so cleaning will be simple. Guess I will get some blue locktite.

geerookie

I have used them over and over before I installed radial mount calipers.
DON'T waste your time with Loctite. It doesn't hold anyway. When the brakes heat up on the track they exceed the temp of the loctite .....most people don't think about this.

Use Nord-locks! Much better solution.

froggy47

I would be careful with repeated use of a die on these. You are also shaving some metal off each pass of the die.

I take a metal awl and hand clean them to save wear & tear on the threads.

Also I agree that "regular" loctite will not stand up to the temps.

Use a high temp loctite or nordlock OR just recheck the torque b4 each event.

gkmccready

I don't bother with loctite on those bolts; I just check them when the wheels are off.

davidfarmer

I've never replaced, cleaned, or loc-tite'd those bolts. Bolts that large (similar to lug nuts) rarely come loose in my experience. I'm not making an engineering analysis, just stating my experience. Torque them to spec and let them be!

varkwso

I do the same and never had one come loose.

flink

The GTO brakes are pretty much identical to the C5. For some reason Holden chose to install Nordlock washers under those brake bracket bolts. On the front brakes only.