It may be. IIRC, the center hole on the aluminum roadster drums is larger
than the one in the Z drums, and there's a recess surrounded by a "ring"
that's about 1/2 in wide on the late roadster drums that I don't think's on
the Z drums. There are instructions (on 311s.org and other sites) on
machining Z drums to fit.
RD
On Mon, Jan 28, 2013 at 10:34 AM, David Patten <futofab@gsinet.net> wrote:
> In the collection of parts that came with my Datsun 1200 racecar, there was
> a single aluminum drum. new but with one broken fin. I assumed it was a Z
> car drum as that is what is on the rear of the car (it has an H190 510
> wagon rear axle).
>
> Turns out the drum has a recess for the OD of the axle flange on the inner
> mounting surface. The 240Z drums I have do not, is this a Roadster drum or
> from another vehicle all together? I had originally thought the Roadster
> and Z drums were the same and interchangable.
> Any thoughts would be appreciated.
> --
> Dave Patten, Owner
>
> FutoFab, LLC
> 199 Stark Hwy So
> Dunbarton, NH 03046
>
> Website - www.FutoFab.com <http://www.futofab.com/>
> e-mail - dave@futofab.com
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