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I have read on several threads, as well as in the GM service manual that you have to replace the caliper bolts anytime you change you pads. I have also read that you can use loctite to get around replacing the bolt entirely. I think I'm going to spend the $.85 a bolt to replace them with new ones, but my question is, how many of each do I need, and I found the below parts numbers, are these correct for a '00 with stock, non-Z06 calipers?
14067559 Small Caliper Bolt 15MM head
14084051 Large Caliper Bracket Bolt 21 MM head
I have read on several threads, as well as in the GM service manual that you have to replace the caliper bolts anytime you change you pads. I have also read that you can use loctite to get around replacing the bolt entirely. I think I'm going to spend the $.85 a bolt to replace them with new ones, but my question is, how many of each do I need, and I found the below parts numbers, are these correct for a '00 with stock, non-Z06 calipers?
14067559 Small Caliper Bolt 15MM head
14084051 Large Caliper Bracket Bolt 21 MM head
Thanks in advance.
First, the bolts in question hold the caliper bracket, not the caliper itself. You DO NOT need to remove the bracket bolts just to change the pads. It only needs to be removed to replace the rotors. Second, the reason GM recommends replacement is so that they get "lock-tited" back on. 99% of folks on this forum re-use the bolts. Just clean them up, new lock-tite and re-install. Third, they are not $.85. You can probably find them on the internet for $3-$5 EACH. Dealer can change up to $10 EACH!
First, the bolts in question hold the caliper bracket, not the caliper itself. You DO NOT need to remove the bracket bolts just to change the pads. It only needs to be removed to replace the rotors. Second, the reason GM recommends replacement is so that they get "lock-tited" back on. 99% of folks on this forum re-use the bolts. Just clean them up, new lock-tite and re-install. Third, they are not $.85. You can probably find them on the internet for $3-$5 EACH. Dealer can change up to $10 EACH!
Yeah, I found the smaller one's online for 85 cents, and the larger ones were like $3, but shipping kinda negates the savings.
I called my local dealer (Bill Heard in Sanford, FL), they had the following pricing, which I'm going to go with:
14067559 - $5.72 ea.
14084051 - $1.44 ea.
I ordered pads and rotors from Fred Beans, that's why I'm replacing the bolts. Thanks for the help.
Yeah, I found the smaller one's online for 85 cents, and the larger ones were like $3, but shipping kinda negates the savings.
I called my local dealer (Bill Heard in Sanford, FL), they had the following pricing, which I'm going to go with:
14067559 - $5.72 ea.
14084051 - $1.44 ea.
I ordered pads and rotors from Fred Beans, that's why I'm replacing the bolts. Thanks for the help.
Good luck. It's a relatively easy project. Your biggest challenge will be to get the bracket bolts out. Its a tight fit (especially on the rears) and they are torqued to 125 Lbs. (UGH - many a busted knuckle).
My gm ceramic pads did not come with new 15mm bolts. I reused all of the old bolts with new lock tight and have had no problems. If you were going to buy new bolts you will need 2 of the big ones and 2 of the small ones for each wheel.
Others above have covered it well.
Each brake requires two of the caliper bracket bolts and two of the little caliper bolts, so if you replace them all you will need eight of each.
I replaced mine at the start of the season, then just reused them each time I replaced rotors during the year, cleaning them and putting on locktite each time.
And yes, those are the correct part numbers for the C5/Z06.
In reality, loctite isn't really needed either It's overkill . GM is just worried about liability.
I'm not so sure I would take that risk. Brake compnents are subject to a high degree of heat and vibration. Also the spec only calls for 23 ft lbs of torqure on the smaller caliper bolts.
I'm not so sure I would take that risk. Brake compnents are subject to a high degree of heat and vibration. Also the spec only calls for 23 ft lbs of torqure on the smaller caliper bolts.
then don't
Just sayin', I've never heard of or encountered a problem. While I'm no longer a proffessional mechanic anymore ( too dirty) , nothing has fallen off or falls off my race cars EVER.
In my gunsmithing work, I use a heat gun to loosen parts (Comps and sights) that have been installed with loctite. I would think that the caliper bracket would get up to those temperatures (400 F). I didn't loctite my bolts but I think parts like this are best safety wired. Simple to drill bolt heads and use vice grips if you don't have safety wire pliers. Also, loctite has a limited shelf life, but they won't say how long.
When the 1984 Corvette came out,the caliper bracket bolts used to break.There was actually a recall to replace the bolts on the 84...Ever since then,GM has made a habit of making a notation in the service manual not to reuse the bolts.
The present control arm recall on the 2004 that requires removing the calipers in the recall procedure says nothing about replacing the bolts