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Old 03-06-2018, 01:01 AM
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Default C4 rear caliper plate?

Potentially a long shot but does anyone happen to have a caliper mounting plate off of their car? I would greatly appreciate some quick dimensions if so: bolt circle and inner diameter.
I need to make a new one for a radial mount caliper and spot caliper.
Thanks!
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Old 03-06-2018, 12:50 PM
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Iv'e got one. I'll measure today and post
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Old 03-06-2018, 07:22 PM
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Iv'e got one. I'll measure today and post
The bolt circle is 120.65mm with .497 dia holes. The bore is stepped into 3 diameters. The bore that fits to the carrier (in your picture) is 3.934 dia. The center bore is 3.776 clearance. The bore that fits to the wheel bearing assembly is 3.620.

The bracket is 1.560 thick.
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Old 03-06-2018, 11:40 PM
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Quote:
Originally Posted by BBShark View Post
Quote:
Originally Posted by BBShark View Post
Iv'e got one. I'll measure today and post
The bolt circle is 120.65mm with .497 dia holes. The bore is stepped into 3 diameters. The bore that fits to the carrier (in your picture) is 3.934 dia. The center bore is 3.776 clearance. The bore that fits to the wheel bearing assembly is 3.620.

The bracket is 1.560 thick.
Perfect thank you!!
Ill post up my final drawing when its complete... C5 front rotor, Stoptech ST40 radial mount and an IPSCO mechanical spot caliper.

PS: Your bolt circle is center to center or edge to center?
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Old 03-07-2018, 12:24 PM
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The bolt circle is to the center of the bolts.

Sounds like a nice setup. Looking forward to seeing it.
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Old 03-22-2018, 04:15 PM
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Preliminary drawing to be 3D printed and test fit
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File Type: jpg Rear Brake Bracket.JPG (237.0 KB, 11 views)
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