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View Full Version : 4l80e swap into 1260691 pcm



Dylpicle8
September 21st, 2015, 04:49 AM
I have a 2005 Silverado Z71 4x4 with push button (autotrac) transfer case that I am swapping a 4l80e into. The O.S is 12606961 and I can't find a 4l80e segment swap to match the OS. Any help with this is very much appreciated, thanks for any answers.

joecar
September 21st, 2015, 09:16 AM
Might be hard to find unless someone has one...

Dylpicle8
September 21st, 2015, 04:50 PM
Seems to be that way, can it be flashed as a new operating system that is compatable? I have only ever seen one file which claims to have the segment in the right OS, but it is for HP tuners and I don't have the software to even check it. :(

roughneck427
September 23rd, 2015, 08:11 AM
Check your vin on GM tis and see if there is a newer OS. If I have the vin I can pull the latest calibration

Dylpicle8
September 23rd, 2015, 08:39 AM
Sorry for not posting initially, the vin is 1GCEK19B55Z298476

roughneck427
September 23rd, 2015, 08:42 AM
Well 12606961 is a newer OS the 12592618 was an older more common OS that I have a bunch of 4l80 files

Dylpicle8
September 23rd, 2015, 09:00 AM
Are they compatable/flash-able into my truck? Really appreciating this help!

roughneck427
September 23rd, 2015, 09:02 AM
Google GM tis and punch your vin in to get all the Calibration data

Dylpicle8
September 23rd, 2015, 11:38 AM
Sweet thanks for all your help!