Can I shift a 4L80E with the solenoids?

[remco]

I find this

1-2 Solenoid 2-3 Solenoid
1st Gear On Off
2nd Gear Off Off
3rd Gear Off On
4th Gear On On
I gues that the lockup also uses a solenoid.

It,s not real rocket sience to make a set of flappy paddles to do that.
Would just need a small gear lever for P-R-N-D
Have a new steering colum in the truck without the shifter.
Dom,t have the computer for the Trans, and prefer to shift in manual.
I know that it will shift a bit hard this way , but will it work?
Thanks

 

[Bextreme04]

Here's a pdf on how to do it reliably... it seems to require some modification of the hard parts also. https://atracom.blob.core.windows.net/gears/2015/2015-03/2015_3_32.pdf

 

[ajd89]

Here ya go! All you need is some light switches!

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[remco]

Shifts seems to be rather smooth in that vid ,