GMC / Chevy (Help) 6.0 Vortec Wiring

JeepinGuru

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Location
WesternSlope, CO
well i finally got a 6.0 and working on hacking up the factory engine harness to work on my junk....

here's the setup
2003 LQ4 6.0
th350
D300

on the harness there's 2 pins that goes to the green pin header
http://www.lt1swap.com/2004vortec_pcm.htm
Pin 22 RED/BLK 1230 AT ISS High Signal (4WD w/MT1)
Pin 23 DK BLU/WHT 1231 AT ISS Low Signal (4WD w/MT1)

do i need these or can i remove them since my trans isnt controlled my pcm, im thinking it might tell the pcm that tcase its in Low range to adjust trans shifting points based on speed?
 
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