'165 $32B vs $6E

[romans, mark]

Hi Shannon.  Good explanation!  Also check out
http://www.gearzone.net/
They have a pretty nice description and some pictures too.
Mark

----- Original Message -----
From: "Shannen Durphey" <shannen at grolen.com>
To: <gmecm at diy-efi.org>
Sent: Friday, July 27, 2001 9:38 PM
Subject: Re: '165 $32B vs $6E


> The 4+3 is a GM designed, Doug Nash manufactured transmission.  It is a
Borg
> Warner Super T-10 4 speed manual transmission with an oil pump and
planetary
> gearset on the output shaft which provides direct drive and overdrive
> operation.  There is a button on the shift lever or console used to
provide
> input to the ecm for overdrive engagement.  Different year 'vettes operate
> differently, and there's enough variation that there's no real general set
of
> rules.  The transmission is not very durable.  Any leaks between the
manual
> transmission and the auto trans OD unit usually result in failure of the
od.
> The screen filter in the od unit should be cleaned and the fluid changed
every
> 10k mi.  The transmission is a beter novelty than anything else.  It
should not
> be considered for any performance apps.
>
> Here is some more info:
> http://www.gearzone.net/dne.htm
> Shannen
>
> Bob Wooten wrote:
> >
> > -----Original Message-----
> > From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On Behalf
> > Of Marteney, Steven J.
> > Sent: Friday, July 27, 2001 12:51 PM
> > To: gmecm at diy-efi.org
> > Subject: RE: '165 $32B vs $6E
> >
> > Sorry for the ignorance, but what is a Vette 4+3 tranny?  Is it actually
one
> > of those add-on units that adds an additional gear reduction in any
gear?
> > ~Yes.
> >
> > So is it an automatic overdrive (4)
> > ~No stick.
> >
> > plus the add on that works in the lower
> > 3 gears?
> > ~ I think that you can use it w/any gear, but I thought that it was
> > recommened for 2-4.
> >
> > The factory actually did this?
> > ~ Yes with mixed results.  some people thought they worked great, but I
have
> > a buddy that did nothing @ the local Chevy dealer but work on them & he
> > hated them.
> >
> > BW
> >
> > Steve
> >
> > -----Original Message-----
> > From: romans at starstream.net [mailto:romans at starstream.net]
> > Sent: Thursday, July 26, 2001 10:38 PM
> > To: gmecm at diy-efi.org
> > Subject: Re: '165 $32B vs $6E
> >
> > Hi Mitch, you must have an 87 vet with a 4+3 trans.  ABTB was my
original
> > code too.
> > There is not a hack for 87-88 code.  It is similar to 86 code and there
is a
> > hac for that.
> > I switched to 6E code but it does not support the 4+3, the skip shift
> > activates the OD!
> > I finally just switched in a 6 speed and really like it!
> > Except that now I am thinking 730, speed density might be the way to go!
> > Mark
>
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