is it gonna fit?

[Shannen Durphey]

The 4L80E is substantially stronger from the factory.  

Ask this question again in a couple of weeks and I'll dig out my trans books.  I
can usually find numbers to go with the relative torque ratings.

Shannen

don.broadus at exeloncorp.com wrote:
> 
> Does the 4L80E have that much more torque handling
> capacity compared to the 4L60E ?   thanks
>                                                        Don
> 
> 
> > -----Original Message-----
> > From: Shannen Durphey [SMTP:shannen at grolen.com]
> > Sent: Thursday, May 17, 2001 10:39 AM
> > To:   gmecm at diy-efi.org
> > Subject:      Re: is it gonna fit?
> >
> > 4L60=700R4
> > Gm game. New name, same ol same ol.
> > Shannen
> >
> > Squash wrote:
> > >
> > > I don't think they started using the 4L60 until 1991.  If it's an 88 it
> > prolly has a 700R4 or
> > > TH400.
> > >
> > > Squash
> > >
> > > --- Jake Kooser <jake_k at attglobal.net> wrote:
> > > > bummer.
> > > >
> > > > Jake Kooser
> > > >
> > > > > -----Original Message-----
> > > > > From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On
> > Behalf
> > > > > Of Shannen Durphey
> > > > > Sent: Thursday, May 17, 2001 12:44 AM
> > > > > To: gmecm at diy-efi.org
> > > > > Subject: Re: is it gonna fit?
> > > > >
> > > > >
> > > > > The 88 truck would have a THM400 or 4L60.  You would need to
> > > > > score a newer model
> > > > > truck for the 4L80E.
> > > > >
> > > > > 4L60 transmissions after 86 are generally stronger, but
> > > > > definitely try to get some
> > > > > idea as to the condition of the fluid and miles on the trans
> > > > > before buying.  Truck
> > > > > transmissions tend to get worked harder.  But you know that.  The
> > > > > ecm would be our
> > > > > friend and brother, the 7747.  But the 7747 really likes to be a
> > > > > tbi ecm.  TPI is
> > > > > better run with a tpi ecm, and since you're not worried about
> > > > > controlling a 4L80E,
> > > > > you can use the 727/730 sd tpi ecm.
> > > > >
> > > > > Fwiw, ymmv, hth.
> > > > >
> > > > > cya.
> > > > >
> > > > > I mean, see ya.
> > > > > Shannen
> > > > >
> > > > > Jake Kooser wrote:
> > > > > >
> > > > > > Somebody here in South Florida was kind enough to roll their 88
> > > > > 3/4 ton 4X4
> > > > > > PU and now is parting it out.  I've got an '85 suburban 3/4 ton
> > > > > 4X4 and I
> > > > > > want to swap my TH400 trans for a 4L80E if I can.  Does anybody
> > > > > here know if
> > > > > > that truck would have that trans, or would it be the 700R4
> > > > > still?  If it's
> > > > > > the 700R4, isn't this after the "fixes" to the early model
> > > > > 700R4 problems?
> > > > > > Should I get the transfer case too?  What else would I need to
> > score to
> > > > > > control the transmission (assuming 4L80), ECM guys?  And
> > > > > finally, what ECM
> > > > > > would be in this truck, and could it be taught to control a Tuned
> > Port
> > > > > > engine?
> > > > > >
> > > > > > Sorry for the geyser 'O' stupid questions, but just the
> > > > > possibility is like
> > > > > > winning the lottery here.  Big Sub like gasoline just a little
> > > > > too much...
> > > > > > Especially after coming from an air-cooled VW.
> > > > > >
> > > > > > Jake Kooser
> > > > > >
> > > > > ------------------------------------------------------------------
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