4L80E speed sensors

[Nasty-Z]

Depending on how many of the outputs are currently used you might be able to find a 1:1 output from the DRAC?

The only 1:1 on the DRAC is at C13 , it is already used to input to B11 on the '7060. I don't think there are any others .

Maybe i'll try to piggyback the VSS and input to B5 and B6 , whats the worst that can happen.............

This is correct according to the schematics, and a switch (in the schematic I posted for an early 7060 truck) would tell the PCM when the T-case is in low range so it would shift correctly.

Where would this be inputted to the '7060 ? I have never seen a schematic that correlated to a pin on the '7060 such a switch would be inputted to.

FWIW , the '91 V3500 Ex railroad truck that my 4L80E/205 combo came from was a 3 speed sensor truck , It was a '7060 PCM also. That combo was supposed to go in my S10 Blazer , but I used the 700R4 / 205 instead.

TOM