Ferrari Mailing List: Re: 456 gt search

[Hans E. Hansen (hans]

An afterthought:

If indeed a transplant were reasonable, maybe the transaxle
from a C5 or C6 Corvette could be a donor?

Hans.

On 7/17/07, Hans E. Hansen <FList [at] hanshansen.org> wrote:
> Well, yes, it IS rocket science.
>
> The 456 gearbox is a transaxle.  You can't simply go
> to the local speed shop and buy a tranny much like
> you would for a Camaro.  And even if you could find
> something that would fit in place of the transaxle (remember,
> many transaxles also serve as mounting points for
> various suspension bits.....), modern cars are integrated
> to an extent that you will have to deal with the various
> drivetrain electronics and engine ECM.
>
> Not something that I'd want to try.
>
> Hans.
>
> On 7/17/07, Rick Lindsay <rolindsay [at] yahoo.com> wrote:
> > I am a bit surprised that no one has suggested mating
> > a different (read: affordable and robust) transmission
> > to the engine.  This isn't rocket science and the
> > gearbox in Ferrari's road cars is not what makes the
> > car a Ferrari.  That happens a few feet ahead of the
> > gearbox. :-P
> >
> > rick
> >
> > --- "Hans E. Hansen" <FList [at] hanshansen.org> wrote:
> >
> > > The auto in the 400/412 was a GM TH400 - a 3 speed.
> > >
> > > Could be wrong, but I don't think that the 456 auto
> > > box is GM
> > > derived.  I remember reading (Forza??) that it was
> > > sourced from
> > > a small company in Michigan that may no longer be
> > > around.
> > > The same article said that either whole units or
> > > parts were
> > > somewhere between difficult and impossible to get.
> > >
> > > Hans.
> > >
> > > On 7/17/07, Britt2Asa [at] aol.com <Britt2Asa [at] aol.com>
> > > wrote:
> > > > Sorry guys but I will chime in here. As much as
> > > the auto 400 is great (a
> > > > manual 400/412 is pretty much undriveable due to
> > > cluth weight) there have been a
> > > > LOT of problems with the auto gear box on 456s
> > > over here. A full rebuild at
> > > > 15,000 miles is COMMON! BTW you can get a NICE 10k
> > > mile 456 here for mid
> > > > 30's....Nobody wants them!
> > > >
> > > > Britt
> > > >
> > > > > Okay...
> > > > >
> > > > > But I did hear that if it ever had to be
> > > replaced it is very expensive....
> > > > >
> > > > > That's why I was questioning your choice in the
> > > first place....
> > > > >
> > > > > It is based on a proven GM TH trans, so it
> > > should be good.
> > > > >
> > > > > FG
> > > > >
> > > > >
> > > >
> > > >
> > > >
> > > > BR in the UK
> > > > 1986 328GTS (LHD 89,940km) Died August 19, 2006
> > > Shrewsbury UK
> > > > 1980 400i (RHD 72,000 miles)
> > > > Searching for the right 512TR
> > > > 2003 BMW 530d
> > > > 1991 Alfa Spider S4
> > > >
> > >
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