question about caliper and bracket bolts
09-06-2015, 05:15 PM
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question about caliper and bracket bolts
I have a set of C6 brakes I'm putting on my 71 Cutlass I'm restoring. I bought them as caliper attached to bracket, pads and rotors.
I didn't get the bolts to mount the brackets to the car. Can someone tell me what the specs are on them or the part number front and rear? Also, if anyone knows the length of the bolts minus the heads so I can make sure they will be the right length.
It looks like blue loctite is used on the caliper to bracket bolts, do you use it on the mounting bolts as well? Also what are the torque specs?
Thanks for the help!
I didn't get the bolts to mount the brackets to the car. Can someone tell me what the specs are on them or the part number front and rear? Also, if anyone knows the length of the bolts minus the heads so I can make sure they will be the right length.
It looks like blue loctite is used on the caliper to bracket bolts, do you use it on the mounting bolts as well? Also what are the torque specs?
Thanks for the help!
09-06-2015, 10:47 PM
#2
Here you go for large bracket bolts
As for the smaller bolt of the caliper to the bracket guide rods themself, the torque spec for those are 23 ft/lbs.
Here is a break down of the different brakes with part numbers, and the base brakes are just JL9's.
http://www.wholesalegmpartsonline.co...=0&searchTerm=
If you're talking about this caliper bracket bolt:
That bolt has GM part# 14084051 and has a spec of M14x2x47. I believe it's the same bolt that's used on all C5/C6 Vettes.
So, it's got a 14mm diameter shank. The head takes a 21mm wrench, and it's about 23.5mm across the points on the head - so that should help with your washer selection.
The torque spec is 129 lb-ft with blue loctite, and I've never heard of anybody have them back out, so I'm not sure why you need nord lock washers on them
The Service Manual says to use new ones every time, but I've taken the calipers on/off my C6 Z06 many times and use the same bolts time after time. I used to use a brush to remove old loctite and then apply more when reinstalling them, but I don't even bother with that anymore, and I've still got to bang them loose with a dead-blow mallet on my box-end wrench.
Bob
That bolt has GM part# 14084051 and has a spec of M14x2x47. I believe it's the same bolt that's used on all C5/C6 Vettes.
So, it's got a 14mm diameter shank. The head takes a 21mm wrench, and it's about 23.5mm across the points on the head - so that should help with your washer selection.
The torque spec is 129 lb-ft with blue loctite, and I've never heard of anybody have them back out, so I'm not sure why you need nord lock washers on them
The Service Manual says to use new ones every time, but I've taken the calipers on/off my C6 Z06 many times and use the same bolts time after time. I used to use a brush to remove old loctite and then apply more when reinstalling them, but I don't even bother with that anymore, and I've still got to bang them loose with a dead-blow mallet on my box-end wrench.
Bob
Here is a break down of the different brakes with part numbers, and the base brakes are just JL9's.
http://www.wholesalegmpartsonline.co...=0&searchTerm=
Last edited by Dano523; 09-06-2015 at 10:56 PM.
09-06-2015, 11:11 PM
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Here you go for large bracket bolts
As for the smaller bolt of the caliper to the bracket guide rods themself, the torque spec for those are 23 ft/lbs.
Here is a break down of the different brakes with part numbers, and the base brakes are just JL9's.
http://www.wholesalegmpartsonline.co...=0&searchTerm=
As for the smaller bolt of the caliper to the bracket guide rods themself, the torque spec for those are 23 ft/lbs.
Here is a break down of the different brakes with part numbers, and the base brakes are just JL9's.
http://www.wholesalegmpartsonline.co...=0&searchTerm=