HELP... caliper fell off...
07-30-2007, 12:56 AM
#1
HELP... caliper fell off... Okay well the title pretty much says it all, my caliper bolt went bye-bye (the top one) on the front left, and the caliper fell off halfway, ruined the inside of my wheel and tore up the caliper itself pretty good. Where can I get a new bolt!!!??? No one has the big black bolt that hold the caliper onto the bracket, I even brought the bottom one around to several places to compare and can't find any bolt like it. I can't seem to find a part number or anything either. Anyone have this info?
07-30-2007, 07:06 AM
#2
The bolt that holds the caliper to the bracket or the bolt that holds the bracket to the knuckle?
I have a drawer fukll of bolts that attach the caliper to the bracket. It threads into the guide pin. New ones come with rebuild kits. I would be happy to drop a couple in the mail to you. I'm not sure of the size or thread pitch.
If it's the bolt that attaches the bracket to the knuckle, that will be a little tougher to find the proper size and GRADE. It's a 10mm x 1.5 pitch (or 1.25, sorry, it's from memory). But it needs to be a grade 10.9, not the standard 8.8 you see typically offered at Lowes or Home Depot.
Or, you can drill out the threads in the knuckle and bracket and insert a pair of 7/16" (1/2" would be better) grade 8 bolts and use nuts to secure.
If it were mine, I'd drill it out and use bolts and nuts.
Use locktite blue.
HTH
I have a drawer fukll of bolts that attach the caliper to the bracket. It threads into the guide pin. New ones come with rebuild kits. I would be happy to drop a couple in the mail to you. I'm not sure of the size or thread pitch.
If it's the bolt that attaches the bracket to the knuckle, that will be a little tougher to find the proper size and GRADE. It's a 10mm x 1.5 pitch (or 1.25, sorry, it's from memory). But it needs to be a grade 10.9, not the standard 8.8 you see typically offered at Lowes or Home Depot.
Or, you can drill out the threads in the knuckle and bracket and insert a pair of 7/16" (1/2" would be better) grade 8 bolts and use nuts to secure.
If it were mine, I'd drill it out and use bolts and nuts.
Use locktite blue.
HTH
07-30-2007, 08:08 AM
#4
Originally Posted by Arc00TA
Where can I get a new bolt!!!??? No one has the big black bolt that hold the caliper onto the bracket
Every caliper bolt I've seen has an anodized coating on it.
07-30-2007, 08:19 AM
#5
Yeah thats the one, my mistake. the ones that hold it to the bracket are there. I couldn't find anything even close to the same thread as the one that came off the car. Is there enough clearance on the back to put a nut if I drill it out?
07-30-2007, 08:53 AM
#6
Clearance between the rotor and knuckle is the most critical. So, you might need to put the bolt through the knuckle first and fasten it with a nut on the back side, having the bolt head against the rotor face. Might have a hard time finding the exact length bolt you need to have the threads hanging out.
Before you drill, make sure you can get a wrench on both bolts with the caliper in bracket in place.
Before you drill, make sure you can get a wrench on both bolts with the caliper in bracket in place.
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07-30-2007, 02:10 PM
#8
If you have a GOOD parts guy at a dealership, he can probably find out.
If you have a Fastenal distributor close by, they could probably find you a match. But, most Fastenal places will only sell fastners in quantitiy, not singles.
I cannot stress enough to make sure you get the same GRADE bolt ...
If you have a Fastenal distributor close by, they could probably find you a match. But, most Fastenal places will only sell fastners in quantitiy, not singles.
I cannot stress enough to make sure you get the same GRADE bolt ...
07-30-2007, 10:22 PM
#10
I cant believe you walked into a parts place and they looked at you with rolling eyes.. I would ask if they have a thread gauge- to check what the threads are.. or just go in their nuts and bolts section (NOT HOME DEPOT/LOWES, they do not carry enough metric stuff) and start pulling nuts out of packages and checking the thread size and pitch. Not very difficult, I would never resort to drilling the knuckle/bracket, thats a hack IMO.
