VSS Speed Sensors

[EagleMark]

If you look at your second pic you see it says input speed sensor, the 4L80E has this to calculate Torque converter and clutch slip. It also has an output sensor for Vehicle speed. A 4WD will just have the VSS mounted in the Transfer Case instead of the non-existent tail housing.

Ok but in $OE it has a 4L80E Paremeter named "4wd Low Reduction Ratio" ?

Math is everywhere, man!

But I get a headache doing VE...

I haven't even looked to see if his speedo comes off his transfer case, but if it did this would be a 1 to 1 in high gear and I could put a 40 ppm in there.

Since it's a manual bin I'm wondering if these "4l80E VSS paremeters" are even going to work?

Since it's a manual how accurate does VSS have to be for the PCM to funtuion properly for engine? I know when these paremeters were off in my 4l60E it effected shifting, but engine ran fine...