How do i hook up my speedometer to my 4l80e.
truck was originally a 350/700r4 and the DRAC is built into the cluster.

Do i use the output from the nelson harnees or hook up my factory VSS wires to the rear 4l80 speed sensor.
also i need an input for cruise and RWAL. and i read somewhere they all take diffrent pulse per mile.

i hope someone understands this or has done this on there OBS engine/trans swap.