C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Brake and Rotor Setup HD

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Old Jan 20, 2008 | 10:43 PM
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Default Brake and Rotor Setup HD

I was looking to buy a brake and rotor setup (http://www.bsibrakes.com/index.asp?P...search=product) but i dont know what HD or Non HD means?? I was thinking Heavy Duty but im not sure.

any ideas, advice, expeerences????


1989 corvette convertible

Last edited by rube1975; Jan 21, 2008 at 04:04 AM.
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Old Jan 20, 2008 | 11:16 PM
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Yes, HD does mean Heavy Duty as far as I can remember. It may have come with Z51 cars. I'm not sure about the option code. You might have to look that up. I think that the HD brakes had rotors on the front that were 1" larger in diameter. You can do the upgrade with just the rotors, calipers, and caliper brackets if I remember correctly.
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Old Jan 20, 2008 | 11:33 PM
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Originally Posted by rube1975
I was looking to buy a brake and rotor setup (http://www.bsibrakes.com/index.asp?P...search=product) but i dont know what HD or Non HD means?? I was thinking Heavy Duty but im not sure.

any ideas, advice, expeerences????
HD usually references the 13" front rotors vs. the 12" which were standard until '95 or '96. If you have J55 on your RPO label, HD is likely what you need.
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