4T-65E

[Jeff M]

You wrote:

>Thanks a lot for all this great info Jeff... It really helps out a lot.

Help where I can, starting to run out here as I was spending a few days
doing research on my 4T60 for a big enough rebuild to handle (as long as it
can) my 350 hp 3.2L turbo engine.  I picked up the extra info I passed along
here on the other versions of the 4T60E etc for you and the guys.  Looks
like some others are picking up the ball so this is good.


>I got a fax today from ATSG through a tranny guy in my neighborhood.
>This fax has the pinnout for the 65E transmission. I am running a 92 ecm
>from a bonneville and from the way this this paper looks... I don't see it
>working. The wiring is as follows :

I don't think I can help here like I said, I am tapped out so far in my
learning curve in this area, sorry, but I will add where I can.

>Input Shaft Speed Sensor (two wires - turbine speed, obviously not
>necessary, just an output)


I don't know if you mean you are not going to use this?  This value is given
to the ECM to address in the stall tables, quoted in my chip doc as table
"F115STM" and labeled "Stall Torque Management Spark Adv. VS. RPM and Ratio
Counts...Ratio is Transmission Turbine RPM/Engine RPM"


>This is the part I'm not sure about :
>
>Pressure Switch Assembly :  Pink Rance "A"   - Connected internally to
>revery and Lo switch
>                                            Yellow - Connected internally
to
>TCC release switch
>                                            Red Range "C" - Connected to a
>"D4" which is in series with "D2"
>                                            Dark Blue Range "B" Connected
to
>a "D3" switch??


I hope that which was sent my another lister addressed this for you?  I
would think that as long as you have the same wiring available, you could
hook
it up properly but, the ECM version and/or EPROM you have may not give the
same results since the tranny will have different shift
calibrations/internals.

Good luck here.  Check the web and I think you may find some GP owners who
have gone this route, to upgrade drivetrain systems and ECM swap out.

Jeff Middaugh
tystorm at email.msn.com