Liberty Rear Disk Brakes for A-Body

RustyRatRod said

I love this kinda stuff. It's true hot rodding. But I still have to ask why people thing a car that hovers around 3K pounds needs 4 wheel discs? I guess it's more of a want/bench racing kinda thing, unless you're doing something where they are actually necessary.

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For me, I like to reduce unsprung axle weight (all weight, actually) as much as possible, but I also like stock parts over aftermarket if it's something likely to require future service.

That said, I am NOT machining that caliper bracket down to a tenth of an inch. I know that it only sees torsional load, but if that rotor develops any warpage at all, I'd figure the bracket will be fatiguing and breaking in short order. Stamped metal has a much more suitable grain structure for that kinda business, over cast/forged.

This being said, is the caliper being offset by a tenth of an inch (let's assume you're machining only 0.050" off the bracket) that big of a deal? Couldn't you just run a 0.1" spacer under the rotor and call it good, or do I have the assembly backwards in my head?