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I was just driving home the other day and i heard a loud clunk under my car....well one of the bolts for my front caliper came out....From now on I 'll be using loctite on them. I will post pics when i have time to take them off my camera tonite
Happened to me and I was going around 50 mph .Pulled it down just in time ,both fell off and cailper was lying in the inside of the wheel..I was pissed just glad it stopped without damage or injury...I loctite EVERYTHING now.
Happened to me on I-40 heading east, only on the left rear. Didn't know what it was until the next day. Took out the edge of the rotor. Finding a replacment bolt on a Saturday in Bullhead took more time than anything else. When I got home, I pulled all caliper bolts and put blue loctite on each one.
Even with the loctite, I check them every time I take off the tires (at least 1X a month for AX)
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
If you read the threads in the autocross/road race section, that happens to track cars a lot more than people would think.
The heat expansion different between the steel bolt, and the aluminum upright and caliper. Next time I take mine apart I'm going to drill them from saftey wires.
Safety wiring is the way to go. When I was motorcycle road racing, we had Tech Inspections that required any bolt that touched liquid as well as brake hardware to be safety wired. There is a tool (special pliers ) that makes this task manageable in terms of time. It is tedious to drill the bolts, however.