Originally Posted by RoLo
Is the resistance values the same for the iroc sensor and the ls sensor.
That is the important question you need to answer.
Looks like both sensors are just variable resistors. so yes, you could just hook the one wire from the IROC cluster to one pin and ground the other. Shouldn't matter which one.
Before you do that hook up the sensor to the car with a set of jumper wires and put it in a cup of hot water with a kitchen thermometer. Run the water temp up and down to see if the gauge reads right. If it doesn't, then look into the adapters