Adding 4wd tables to a 2wd tune

[93 Krawler]

The engine and trans are out of a 2004 Avalanche 4x4. 5.3 - 4l60e and put in a 95 S10 Truggy
My issue is I didn't want to use the DBW setup so I sourced a cable tbody and pcm from a 2003 Express van. The 2004 pcm would not run the IAC. I didn't know at the time that the 2wd pcm would not have the 4lo shift tables in it. So in 4lo the trans will not shift.
So what are my options here? Can the 4wd tables be added to the 2wd tune somehow? Any help would very appreciated. I'm trying to get this ready for a Labor day wheeling trip.

[93 Krawler]

Someone has to know if there is a way to make a 2wd pcm read the 4wd tables. Please help.

[93 Krawler]

With some trial and error, I finally figured it out. I ended up getting a 2003 Yukon 4x4 tune file from the repository. I then transferred all the segments to my file and it shifts in 4lo now. Make sure that the dtc code P1875 for 4 low is enabled.

[IARLLC]

Thanks for letting us know! Really appreciated!