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07-04-2023, 03:32 PM
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#1 |
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Senior Member
 
Join Date: Sep 2002
Location: Alamogordo, NM
Posts: 678
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Another Mystery Part
This is kinda embarrassing; I've been working on cars and trucks for 50 years but I have never come across this.
I bought a CPP disc brake conversion kit and this came in the caliper box, one with each caliper: It's a square O-ring, about 1 1/2" OD. I have no idea what this would have to do with a caliper install. 67-72 C10 Any ideas? |
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07-09-2023, 10:42 PM
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#2 |
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Senior Member
Join Date: Sep 2014
Location: Wenatchee, Wa
Posts: 897
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Re: Another Mystery Part
Packing material?
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07-10-2023, 10:58 AM
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#3 |
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Senior Member
Join Date: Sep 2002
Location: Alamogordo, NM
Posts: 678
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Re: Another Mystery Part
I suppose that's a possibility although the way they were just laying in the box they weren't doing much!
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07-10-2023, 03:35 PM
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#4 |
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Senior Member
Join Date: Sep 2014
Location: Wenatchee, Wa
Posts: 897
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Re: Another Mystery Part
Did the calipers come with the pads already installed?
The oring way have been there or provided to keep the pads in place during install. |
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07-10-2023, 05:24 PM
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#5 |
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Senior Member
Join Date: Sep 2002
Location: Alamogordo, NM
Posts: 678
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Re: Another Mystery Part
Calipers were loaded but the bolts were also installed which kept them in place.
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07-10-2023, 05:46 PM
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#6 |
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Senior Member
Join Date: Sep 2014
Location: Wenatchee, Wa
Posts: 897
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Re: Another Mystery Part
I give up!
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07-10-2023, 06:50 PM
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#7 |
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Senior Member
Join Date: Sep 2002
Location: Alamogordo, NM
Posts: 678
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Re: Another Mystery Part
Me too! I'll save them for alternate uses!
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07-13-2023, 06:35 AM
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#8 |
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Registered User
Join Date: Dec 2017
Location: Elkhart, Texas
Posts: 1,532
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Re: Another Mystery Part
The two mounting bolts pass through two sleeves in the "ears" of the caliper.. Inside each of those holes in the "ears" is a groove.. Those O-rings fit in that groove, and the sleeve passes through it.
The brake section of my '71 Service Manual shows a blow up picture of the caliper.. Those O-rings are shown in that picture... |
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07-13-2023, 07:27 AM
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#9 |
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Senior Member
Join Date: Sep 2002
Location: Alamogordo, NM
Posts: 678
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Re: Another Mystery Part
These O-rings are about 4x the the size of the mounting bolt O-rings.
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07-20-2023, 08:36 AM
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#10 | |
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Registered User
Join Date: Jan 2007
Location: Puyallup, WA
Posts: 1,661
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Re: Another Mystery Part
Quote:
__________________
72 C10 lwb fleetside -stock 350/350 combo |
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07-28-2023, 03:54 PM
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#11 |
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Registered User
Join Date: Sep 2011
Location: Ark City, Kansas
Posts: 3,280
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Re: Another Mystery Part
Nothing but packing..........
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