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Front brake-caliper support key

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Old Nov 21, 2020 | 12:48 PM
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Front brake-caliper support key

I am trying to remove the caliper support key. It seems to be really rusted in--like a lot of things on this truck. Am I trying to move it in the right direction and hitting it in the correct spot? (see marked up photo) I am using a steel pipe as my "drift"

 
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Old Nov 21, 2020 | 12:50 PM
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The key gets hammered outward away from the frame.
 
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Old Nov 21, 2020 | 01:08 PM
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Looks like some PB blaster would also help.
 
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Old Nov 21, 2020 | 01:55 PM
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Originally Posted by ford390gashog
The key gets hammered outward away from the frame.
I kind of thought so. Thanks!
 
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Old Nov 21, 2020 | 01:56 PM
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Originally Posted by smle
Looks like some PB blaster would also help.
Yep, got plenty of that. Thanks!
 
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Old Nov 21, 2020 | 05:25 PM
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It'll go either way, and it has a spring leaf with it. It is not tapered nor is the slot. I use a long skinny pin punch, maybe 3/16" diameter, and with hammer, I gently knock it toward frame and it falls on the floor, then later when ready to reinstall, I insert it on the side nearest med as I'm seated on my shop stool, and move it towards the frame with a few taps until the retaining bolt half moon lines up with the threaded hole, insert bolt, done.
 
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Old Nov 22, 2020 | 11:56 AM
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Still "frozen". I'll keep working on it...
 
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Old Nov 22, 2020 | 12:10 PM
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Give the caliper and the caliper bracket each a good smack. It might help to break some rust loose and let the penetrating oil in.
 
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Old Nov 22, 2020 | 07:21 PM
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Put a torch on it to get it hot, then once its cooled down give it a few whacks,
 
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Old Nov 22, 2020 | 07:51 PM
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Put a screwdriver with a big head or a chisel that lines up with the key and give it some careful whacks with that. I believe going in the outward direction is the correct way, but you might give it a hit or two going inward to help break it free.
 
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Old Nov 23, 2020 | 07:47 AM
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Originally Posted by tbear853
It'll go either way, and it has a spring leaf with it. It is not tapered nor is the slot. I use a long skinny pin punch, maybe 3/16" diameter, and with hammer, I gently knock it toward frame and it falls on the floor, then later when ready to reinstall, I insert it on the side nearest med as I'm seated on my shop stool, and move it towards the frame with a few taps until the retaining bolt half moon lines up with the threaded hole, insert bolt, done.
Yep it will go either way but I do it just like you do.
Work easier not harder
Dave ----
 
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Old Nov 23, 2020 | 08:37 AM
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When you put back together, clean rust from sliding surfaces with wire wheel or file, coat surfaces with Permatex #80078 anti-seize lubricant or equivalent.
 
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Old Nov 23, 2020 | 08:40 AM
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a good place for an air hammer! if you don't have one, get your biggest punch and biggest hammer and hit right on the star in your picture as squarely as possible to get it broken loose. if that doesn't work, then a little persuasion from some heat may be needed as other have recommended.
 
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Old Nov 23, 2020 | 09:14 PM
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I got it! Thanks for the help everyone! I'm going with new calipers.


 
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Old Nov 23, 2020 | 09:27 PM
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Make sure to turn or replace the rotors and definitely replace the rubber hoses.
 
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