[Gmecm] 4L80e/4L60e

[Butler James-CJB006]

	Should one also be concerned about (in decreasing order):

	- line pressure tables
	- upshift/dnshift points
	- TCC apply/release points

	Maybe Harry's taken this into consideration, i.e., that a
practical retrofit into an existing ECM might require SW mods, but it's
worth mentioning.

	Jim


-----Original Message-----
From: gmecm-bounces at diy-efi.org [mailto:gmecm-bounces at diy-efi.org] On
Behalf Of William Lucke
Sent: Sunday, June 25, 2006 6:49 PM
To: gmecm at diy-efi.org
Subject: RE: [Gmecm] 4L80e/4L60e

You can run a 4L80E with a 4L60E PCM. The truth table for the solenoids
is different, but all you need to do is put an inverter on one of the
solenoid wires, I think.



Will



> From: Rexdina at aol.com
> Subject: [Gmecm] 4L80e/4L60e
> 
> Does anyone know for sure if the 4L80e wiring receptacle and plug  
> would interchange with that for a 4L60e?
>  I have a '94 GMC van that I'd like to change from the factory 4L60e
trans. 
> to a '94 4L80e GMC van trans. for towing purposes. 
>   If that isn't possible, what about a stand alone controller for the

> 4L80e, and how would I disable the inputs from the 4L60e to the ECM?
>   Thanks, and I realize this may be the wrong forum to ask these
questions. 
> In that case, does anyone know of a good GM transmission forum?
> Harry
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