pit-pony

When changing rotors often, do you swap out the caliper bracket bolts?

I read they are one time use but I also read that they are re-used with red locktite.

They can be costly.

What are folks doing?

John Shiels

reuse them many many many times.

waddisme

Just make sure you clean the red stuff that is on them from the factory. I switch mine out once a month so I don't loctite them. Actually I don't even torque them. 125 ft/lbs is a tight as I can get them with my medium breaker bar, so I just tighten them as much as I can and go with it. So far they haven't come off. Same with the caliper bolts. Shop manual says to replace, but for the shop, it is cheaper to repl than to take time to clean red stuff off.

Jason

Tighten them to exact spec using my precision 4lb hammer and 1' ratchet.

I use blue loctite ever since I had one back out many many years ago.

Bills Z06

I've never changed them - not sure it's necessary at all.

CHJ In Virginia

Don't waste your $ replacing those bolts !! They are high tensile strength and will last a lot longer than the bracket they screw into. If you are really ****, you can use a wire brush and clean all the old red material off the bolt and chase the bracket with the correct size tap and then reapply some Blue loktite before retorquing. I just cleaned mine up good once and place a small drop of Blue on bolt at each reassembly. Have not had a problem on the current bolts that have been in and out at least 50 times over the last 7 years.

c4cruiser

The bracket bolts on my 87 are the original ones and they have been on and off at least a dozen times in the last three years. I clean the bolt threads on a wire wheel and apply blue Loctite. For the female threads in the bracket, I have found that a 12 gauge shotgun brass cleaning brush works well to clean out any old material.

If you do have to replace the bolts, make sure they are a metric 10.9 strength (same as SAE Grade 8). OEM bolts come with a threadlocker already applied.

95jersey

Got a C6Z, so you have to dismount the caliper to change the pads...bolts have been in and out maybe 50 times over 4-5 years.

spdislife

Use them over again and again. Also use the blue Loctite.

RX-Ben

Doesn't the heat melt the blue loctite?

spdislife

I'm not sure but I don't think so. I just figure it can't hurt, and as Jason said he's had one back out already.

RX-Ben

Use Nordlocks from Hardbar to prevent them from backing out.