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Old 07-11-2019, 06:07 AM   #1
dxbraptor
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c10 72 brake caliper casting

hi

i just bout a c10 72 fitted with disk brakes this car was parked for a long time so i am rebuilding the brakes but i couldn't identify the calipers
the rear one has casting number 4611
and the front 474177
so what is the part number as i am towards changing the caliper because they are rusted or try to rebuild it if possible.
tried to google it but I got confused .
any help appreciated .
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Old 07-11-2019, 08:19 AM   #2
geezer#99
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Re: c10 72 brake caliper casting

Take some pics.
Someone might see if it’s stock or after market.
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Old 07-13-2019, 12:27 PM   #3
dxbraptor
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Re: c10 72 brake caliper casting

Enclosed the images
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Old 07-14-2019, 08:13 PM   #4
AcampoDave
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Re: c10 72 brake caliper casting

It has calipers on the rear?
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Old 07-17-2019, 08:30 AM   #5
dxbraptor
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Re: c10 72 brake caliper casting

Yes
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Old 07-17-2019, 09:31 AM   #6
AcampoDave
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Re: c10 72 brake caliper casting

1972's originally had disc on the front and drum brakes on the rear. I would bet somebody has replaced the whole rear end with something from a different GM vehicle. It's likely a good bet to assume the front could just be obtianed from an auto parts store using the factory info, but as for the rear you would need to know the original application of the rear axle. Perhaps if you post a pic of the rear end somebody here may be able identify it and give you some idea as to what kind of cars used it.
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Old 07-17-2019, 11:06 AM   #7
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Re: c10 72 brake caliper casting

x-ref for Casting 5474177 Disc Brake Caliper:
BENDIX - R55060
BENDIX - R55383
AUTOSPECIALTY - 41-82045
CENTRIC - 141.62045
CENTRIC - 141.66001
NAPA - 42-2001
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Old 07-17-2019, 12:15 PM   #8
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Re: c10 72 brake caliper casting

Still got a truck 12 bolt in it?

Gary
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Old 07-17-2019, 01:04 PM   #9
dxbraptor
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Re: c10 72 brake caliper casting

Thanks
If u have the gm part will be great becouse the parts guys here are so lazy.
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Old 07-17-2019, 10:21 PM   #10
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Re: c10 72 brake caliper casting

If the inside of the bore is clean along with the piston you can rebuild them yourself. Looks like the standard GM 1/2 caliper (same as the front) from 1971 up to 1991
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Old 07-18-2019, 03:11 PM   #11
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Re: c10 72 brake caliper casting

The deferential image
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Old 07-18-2019, 10:57 PM   #12
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Re: c10 72 brake caliper casting

That's a truck 12 bolt. Likely original to the truck. A disc brake conversion has obviously been added. What is the center to center measurement of the bolt holes on the rear calipers.They should be either 5.5" or 7.0". Also what is the thickness of the rear rotors?
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