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Ronal R15/LS1 Brakes

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Old Jan 10, 2026 | 03:05 PM
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Anti-Venom's Avatar
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From: Springfield, IL
Car: '89 Formula WS6
Engine: L98
Transmission: 700r4/T56
Axle/Gears: BW 3.23
Ronal R15/LS1 Brakes

After searching, I'm finding contradicting information. Some posts say LS1 brakes fit with Ronal's, and others say that they don't. Can anyone confirm if you can fit LS1 front brakes with Ronal's? From what I can tell, they seem like they should be able to clear?
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Old Jan 10, 2026 | 08:54 PM
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Re: Ronal R15/LS1 Brakes

I dont have the exact answer but there is no reason why they would not fit. LS1 brakes came on Z28's with 16" wheels. You should be fine.
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Old Jan 11, 2026 | 09:04 AM
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From: Springfield, IL
Car: '89 Formula WS6
Engine: L98
Transmission: 700r4/T56
Axle/Gears: BW 3.23
Re: Ronal R15/LS1 Brakes

I wouldn't think they wouldn't either. But the caliper/spoke clearance is pretty tight on these wheels. I have Wilwood FSLI Calipers with C4HD rotors currently and I'm not diggin how thick of a spacer they require to run. Considering changing things up a bit. I'm thinking I might possibly have to change and re-modify new spindles too. Current brackets use a std thread bolt. It looks to me like the LS1 brackets were made to use metric bolts.
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Old Jan 11, 2026 | 10:25 PM
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Car: 1989-92 FORMULA350 305 92 Hawkclone
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Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Ronal R15/LS1 Brakes

Could be a difference with original and later versions of the wheels? Was there ever a repop of the 17" r15?
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