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Discussion Starter #1 (Edited)
Hallo. I have 92's civil caprice with G80 3.08 rearend.
I plan to implant rear 330mm disk disk brakes from bmw 5 that is most closely same as stock 94-96 b-body disk brakes!
But i do not have a mounting location and axle drawings with width and sizes all this area to make mountig plate.
Does anybody have this drawings or can help with this stuff?

BMW BEAKE DISK need to be redrilled to 5x127 patten and center hub expanded to 77.9mm which is very easy and cheap.

Anybody can find disk rotors by sizes here:
https://www.bremboparts.com/europe/ru/catalogue/size?producttype=Disc&diameter=296&a=60&issizetolerance=True
 

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See page 2, "small GM 10/12 bolt" pattern info


Can we assume you are not going to be using a park brake? C6/C6 Corvette rotors, which should be available from Brembo, might be a better choice, but I understand you do not have any B-body disc brake backing plates, so (apparently) no park brake. How thick are BMW rotors? C6 Z51 rear rotors are 330 x 26.
 

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Discussion Starter #5
I'm going to use a VW T5 caliper with 22mm disk brake, probably from BMW 5 - brembo 09.7116.10.
 

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One thing you must be aware of is the axle shaft flange diameter of a B-body could easily be larger than the hat diameter of some of the rotors you are considering. Beyond that, the mix/match of parts you're proposing is nothing I'm familiar with, and I can only suggest the weight class of the vehicles you are looking at parts from are possibly not appropriate - but I realize you have different or fewer resources than are available here. All I can say is Good Luck!
 

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Discussion Starter #7 (Edited)
shaft flange diameter - not a problem... Any disk brake can be easealy sized to b-body on lathe with bolt patterns too.

VW T5 Calipers:
192346
 

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Discussion Starter #10
Than plan to get VW Phaeton 2006 rear calipers with e-brake + brace TRW BDA 604 and 605 and than make mounting plate.
192612



192613


192614
 
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