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View Full Version : 4L60e to T56 transmission (M30 to M12)



Naf
August 20th, 2006, 11:01 PM
I own a 2006 Holden Caprice SS.

I have planned to swap out the stock Auto tranny for a Manual one.
I got pretty much all the basics except for the wiring and programmin.
The wiring will be a challenge, and is not the topic of this discussion, the programmin however has me baffled.
In my 2006 Chevrolet Tahoe, in the Transmission calibrations offers 6 gear option, while only using 4. In the Holden i am only offered 4 gears and not the 6 i thought i would have gotten.

How do i get the extra 2 gears i need? :help2:

ringram
August 21st, 2006, 12:12 AM
Just download and flash a manual PCM image in from www.holdencrazy.com to suit. Is this an LS1? Maybe check out the 1024Kb HSV stuff. Or use a stock SS M6. That should sort out any issues.