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You need more than just the cluster. There's a drac box around the ashtray its a white box it takes the signal from the speed sensor and sends it to the ecm, cluster and abs.The drac takes the 40 pulse per revolution of the driveshaft and converts that to 2000 pulses per mile to the ecm and speedo, 4000 pulses per mile to the cruise and 128000 per mile to the abs.The dracs boxes are also different for each gear ratio. But if you look at your old cluster and trace the contacts from lets say the volt meter to the pig tail it will show you what wires go to the volt meter.