This answer doesn't quite make sense to me. IIRC, the drum fits fairly
tightly on the studs, then even tighter over the shoes. The hub never
protrudes through the drum to center it. However, with the larger 12mm
studs, the stud holes are probably larger on a 240z drum.
What is the advantage to running 240z drums? Could you use 510 drums,
since they use essentially the same shoes?
At 02:48 PM 5/28/2002 -0400, Peter Long wrote:
>Marc sent me this response to my question - I had not thought of this.
>
> Has anyone done the appropriate machining of a 240Z drum hub opening,
>to make it work on a roadster? Any recollection of just how much bigger
>the hole needs to be?
>
>Thanks again
>
>Pete Long
>
>
>--------------------------
>
>The center hole in the Z drums is much smaller than the Roadster drums.
>While I've never acutally tried a set of Z drums on a Roadster, I doubt
>the center hole will fit over the hub. I also belive that both car's
>drums are what's known as hub-centric, that is the center hole fits
>tightly over the hub to center the drum properly. That means to used a
>drum you would have to have the center hole remachined to fit the
>Roadster hub exactly. It would need to be precise and acurate machining
>and not just sloppy clearancing work.
>
>--
>Marc Sayer
>82 280ZX Turbo
>71 510 Trans Am vintage racer
>
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Adam Bradley
'70 Datsun 1600 Roadster SPL311-28181
'66 Datsun PL411 sedan PL411-022447
http://www.picturetrail.com/abend
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